Basic Information

Affiliated programs (koza)

• Graduate School of Science, 生物科学専攻 霊長類学講座, 准教授

Concurrent Affiliation

• Center for the Promotion of Interdisciplinary Education and Research (C-PiER), 心の先端研究ユニット

Academic Degree

• 修士（文学）(京都大学)
• 博士（文学）(京都大学)

Research History

• From Sep. 2025, To Present

  Kyoto University, Cenyer for Evolutionary Origins of Human Behavior, Associate Professor
• From Apr. 2022, To Sep. 2025

  京都大学ヒト行動進化研究センター 認知神経科学分科 准教授 に配置換え
• From Apr. 2017, To Mar. 2022

  Kyoto University Primate Research Institute, Language and Intelligence Section, Associate Professor
• From 2009, To Mar. 2017

  Kyoto University, Primate Research Institute, 助教

Language of Instruction

• English

ID,URL

• J-Global ID

  201101003082306035

• External link

  https://ikumaadachi.wixsite.com/primate-cognition-la

Website(s) (URL(s))

• http://www.cicasp.pri.kyoto-u.ac.jp/people/ikuma-adachi

researchmap URL

• https://researchmap.jp/adachi_kupri

Research

Research Topics, Overview of the research

• Research Topics

  Comparative cognitive approach on cross-modal integration and the social cognition in nonhumans

• Overview of the research

  My long-term research goal is to better understand the evolution of cognitive abilities in human and non-human animals. I am especially interested in social cognition, such as recognition of other individuals, categorization by sex and social status, and social relationships among individuals. My research has focused on whether non-human animals form cross-modal representations of familiar individuals and species. I have studied a wide variety of species, including four species of old-world monkeys, three species of new-world monkeys, pigeons, dogs, horses. These investigations were conducted in the laboratory using both operant and non-operant paradigms to measure cognitive function.

Research Interests

• 比較認知科学
• クロスモーダル処理
• 包括脳ネットワーク
• 顔認知

Research Areas

• Humanities & social sciences, Cognitive sciences

Papers

• Study of e⁺ e^- → ηφ via initial state radiation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Search for CP violation in D⁺_(s)→ K+K⁰_Sh⁺h⁻ (h = K, π) decays and observation of the Cabibbo-suppressed decay D_s⁺→K⁺K⁻K_S⁰π⁺

  Ikuma Adachi

  Arxiv, 2023

  
• Two-particle angular correlations in e⁺e^- collisions to hadronic final states in two reference coordinates at Belle

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2023

  
• Study of the muon decay-in-flight in the τ^- → μ^-(ν)over-bar_μν_t decay to measure the Michel parameter ξ'

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Study of e plus e-→ σ0σ over bar 0 and σ plus σ over bar - by initial state radiation method at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Study of the lineshape of X(3872) using B decays to D⁰(D)over-bar*⁰K

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Search for rare decays B⁺ → Ds^(*) + η, D_s ^(*) + (K)over-bar⁰, D+η, and D+K⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Search for X(3872) → π⁺ π^- π⁰ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Search for the decay B⁰_s ?^p0^p0 at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Search for the double-charmonium state with $eta_c J/psi$ at Belle

  Ikuma Adachi

  Arxiv, 2023

  
• Search for the decay B_{n^{​​​​​​​}}° → π°π° at Belle

  Ikuma Adachi

  Arxiv, 2023

  
• Search for CPviolation using T-odd correlations in D⁺_(s) → K⁺K⁻π⁺π⁰, D⁺_(s) → K⁺π⁻π⁺π⁰, and D⁺ → K⁻π⁺π⁺π⁰ decays

  Ikuma Adachi

  Arxiv, 2023

  
• Search for lepton-flavor-violating τ decays into a lepton and a vector meson using the full Belle data sample

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2023

  
• Search for a Dark Photon and an Invisible Dark Higgs Boson inμ plus μ - and Missing Energy Final States with the Belle II Experiment

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2023

  
• Observation of e plus e- → ωχ_bJ(1P) and Search for X_b → ωγ(1S) at √s near 10.75 GeV

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2023

  
• Measurement of branching fractions of Λc+-pK0SK0S and Λc+-pK0Sη at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurement of the mass and width of the Λ_c (2625)⁺ charmed baryon and the branching ratios of Λ_c (2625)⁺→ Σ_c⁰π⁺ and Λ_c (2625)⁺ → Σ_c⁺⁺π^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurement of the B⁺/B⁰ production ratio in e⁺e^- collisions at the γ(4S) resonance using B → J/ψ(ll)K decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurement of the B⁰ lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019-2021 Belle II data

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurement of the branching fraction and CP asymmetry of B⁰ → π⁰π⁰ decays using 198 x 10⁶ B(B)over-bar pairs in Belle II data

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurement of differential distributions of B. D l.l and implications on jVcbj

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurements of branching fractions of Λ_c⁺, → Σ⁺η, and Λ_c⁺, → Σ⁺η′ and asymmetry parameters of Λ_c⁺ → Σ⁺Π⁰, Λ_c⁺, → Σ⁺η, and Λ_c⁺, → Σ⁺η′

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurements of the branching fractions B(?B0?D*+?-) and B(?B0?D*+K-) and tests of QCD factorization

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurement of two-photon decay width of xc2(1P) in ??? xc2(1P) ? J/????????i? at Belle

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2023

  
• Measurement of the branching fraction of Ξ0c → Λc plus π- at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Angular analysis of the low K ⁺K^- invariant mass enhancement in B⁺ → K⁺ K^- π⁺ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• First search for the weak radiative decays Λc plus → Σ plus γ and 80c → 80γ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2023

  
• Measurement of Differential Distributions of $B to D^* ell bar nu_ell$ and Implications on $|V_{cb}|$

  Ikuma Adachi

  Arxiv, 2023

  
• First Observation of A? plus and A?- Signals near the ?KN(I=1) Mass Threshold in Ac plus ? A? plus ? plus ?- Decay

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2023

  
• First Measurement of the B⁺ → π⁺π⁰π⁰ Branching Fraction and CP Asymmetry

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2023

  
• First Measurement of the Michel Parameter?0 in the t- ? μ- ?^-μ?t Decay at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2023

  
• Evidence of a New Excited Charmed Baryon Decaying to Σ_c (2455)^{0,+ +} π^±

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2023

  
• Evidence for the singly Cabibbo-suppressed decay O_c⁰ ? (sic)^-p⁺ and search for O_c⁰ ? (sic)^-K⁺ and O^-K⁺ decays at Belle

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2023

  
• Study of γγ → γψ(2S) at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2022

  
• Measurement of the branching fraction of the B⁰ → K_S⁰π⁰ γ decay using 190 fb⁻¹ of Belle II data

  Ikuma Adachi

  Arxiv, 2022

  
• Measurements of the branching fractions of Ξ_c⁰ → ΛK_S⁰, Ξ_c⁰ → Σ⁰K_S⁰, and Ξ_c⁰ → Σ⁺K^- decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2022

  
• Search for a Light Higgs Boson in Single-Photon Decays of Υ(1S) Using (SIC)(2S) → π⁺ π^- Υ(1S) Tagging Method

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2022

  
• Search for B⁰ meson decays into A and missing energy with a hadronic tagging method at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2022

  
• Measurement of the branching fraction and CP asymmetry for B → (D)over-bar⁰π decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2022

  
• Search for Z' → μ⁺μ^- in the L_μ - L_τ gauge-symmetric model at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2022

  
• Measurement of the Ω_c⁰ lifetime at Belle II

  Ikuma Adachi

  Arxiv, 2022

  
• Study of Exclusive B → πe⁺ν_e Decays with Hadronic Full-event-interpretation Tagging in 189.3 fb⁻¹ of Belle II Data

  Ikuma Adachi

  Arxiv, 2022

  
• First Observation of Aπ⁺ and Aπ⁻ Signals near the ¯KN(I = 1) Mass Threshold in A⁺_c→ Aπ⁺π​​​​​​​⁺π⁻ Decay

  Ikuma Adachi

  Arxiv, 2022

  
• Measurement of Two-Particle Correlations of Hadrons in e⁺e⁻ Collisions at Belle

  Ikuma Adachi

  Arxiv, 2022

  
• First test of lepton flavor universality in the charmed baryon decays Ω_c⁰ → Ω^-l⁺ν_l using data of the Belle experiment

  Ikuma Adachi

  PHYSICAL REVIEW D, 2022

  
• Angular analysis of B+ → ρ⁺ρ⁰ decays reconstructed in 2019, 2020, and 2021 Belle II data

  Ikuma Adachi

  Arxiv, 2022

  
• Search for the lepton flavour violating decays B⁺ → K⁺τ^±ℓ^∓ (ℓ = e, µ) at Belle

  Ikuma Adachi

  Arxiv, 2022

  
• Measurement of branching fractions and CP asymmetries for D_s⁺ → K⁺(η,π⁰) and D_s⁺ → π+(η, π₀) decays at Belle

  Ikuma Adachi

  Arxiv, 2021

  
• Test of lepton flavor universality and search for lepton flavor violation in B → Kll decays

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2021

  
• Search for the dark photon in B⁰ → A′A′, A′ → e⁺e^-, μ⁺μ^-, and π⁺π^- decays at Belle

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2021

  
• Measurements of branching fractions and asymmetry parameters of Ξ_c⁰ → Λ(K)over-bar*⁰, Ξ_c⁰ → Σ⁰(K)over-bar*⁰, and Ξ_c⁰ → Σ⁺ K*^- decays at Belle

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2021

  
• Measurements of partial branching fractions of inclusive B → XTI4PFTI4PF_u^lx+ν_l decays with hadronic tagging

  Ikuma Adachi

  PHYSICAL REVIEW D, 2021

  
• Search for the 77c2(1D) in e⁺e⁻ → γ η_c2(1D) at √s near 10.6 GeV at Belle

  Ikuma Adachi

  Arxiv, 2021

  
• The Belle II Physics Book (Dec, 10.1093/ptep/ptz106, 2019)

  Ikuma Adachi

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2020

  
• The Aerogel RICH detector of the Belle II experiment

  Ikuma Adachi

  EUROPEAN PHYSICAL SOCIETY CONFERENCE ON HIGH ENERGY PHYSICS, EPS-HEP2019, 2020

  
• Initial performance of the Aerogel RICH detector of the Belle II experiment

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020

  
• Front-end electronics of the Belle II aerogel ring imaging detector

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020

  
• Search for an Invisibly Decaying Z′ Boson at Belle II in e⁺e^- → μ⁺μ^- (e^±μ^∓) Plus Missing Energy Final States

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2020

  
• First search for the η_c2(1D) in B decays at Belle

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2020

  
• Search for a doubly charged DDK bound state in Υ(1S, 2S) inclusive decays and via direct production in e⁺e^- collisions at √s=10.520, 10.580, and 10.867 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2020

  
• Measurement of the Resonant and Non-Resonant Branching Ratios in Ξ⁰_c →Ξ⁰K⁺K⁻

  Ikuma Adachi

  Arxiv, 2020

  
• Calibration of the Belle II aerogel ring imaging detector

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020

  
• Development of alignment algorithm for Belle II Aerogel RICH counter

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020

  
• Belle II aerogel RICH detector

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020

  
• Transverse momentum dependent production cross sections of charged pions, kaons and protons produced in inclusive e⁺e^- annihilation at √s=10.58 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2019

  
• The Belle II Physics Book

  Ikuma Adachi

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2019

  
• Search for a Light CP-odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2019

  
• Search for CP violation with kinematic asymmetries in the D⁰ → K⁺K^- π⁺π^- decay

  Ikuma Adachi

  PHYSICAL REVIEW D, 2019

  
• Observation of Transverse Λ/(Λ)over-bar Hyperon Polarization in e⁺e^- Annihilation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2019

  
• Observation of B⁺ → p(Λ)over-barK⁺ K^- and B⁺ → (p)over-barΛK⁺ K⁺

  Ikuma Adachi

  PHYSICAL REVIEW D, 2019

  
• Observation of Ξ(1620)⁰ and Evidence for Ξ(1690)⁰ in Ξ_c⁺ → Ξ^- π⁺ π⁺ Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2019

  
• Search for the B → Y(4260)K, Y(4260) → J/ψπ⁺π^- decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2019

  
• First experience with Belle II Aerogel RICH detector

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2019

  
• Measurement of the CKM matrix element |V_cb| from B⁰ → D*^-l⁺ν_l at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2019

  
• Observation of τ^- → π^-ν_τe⁺e^- and search for τ^- → π^-ν_τμ⁺μ^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2019

  
• First measurement of the CKM angle φ₃ with B^±→ D(K_S⁰π⁺π^-π⁰) K^± decays

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2019

  
• First Measurements of Absolute Branching Fractions of the Ξ_c⁰ Baryon at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2019

  
• Evidence for the decay B⁰ → p(p)over-barπ⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2019

  
• Search for CP violation in the D⁺ → π⁺ π⁰ decay at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Study of K_S⁰ pair production in single-tag two-photon collisions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Production cross sections of hyperons and charmed baryons from e⁺e^- annihilation near √s=10.52 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Publisher's Note: Search for B → hvv decays with semileptonic tagging at Belle (vol 96, 091101, 2017)

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Search for γ (1S,2S) → Z_c⁺Z_c^(')- and e⁺e^- → Z_c⁺Z_c^(')- at √s=10.52, 10.58, and 10.867 Gev

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Search for B^- → μ^-(ν)over-bar_μ Decays at the Belle Experiment

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2018

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• Search for the lepton-flavor-violating decay B⁰ → K^*0μ^±e^∓

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Observation of γ(2S) → γη_b(1S) Decay

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2018

  
• Search for the rare decay of B⁺ → l⁺νeγ with improved hadronic tagging

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Measurement of the τ lepton polarization and R(D*) in the decay (B)over-bar → D*τ^-(ν)over-bar_τ with one-prong hadronic τ decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Measurements of the absolute branching fractions of B⁺ → Xc(c)over-barK⁺ and B⁺ → (D)over-bar^(*)0π⁺ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Observation of excited Ω_c charmed baryons in e⁺e^- collisions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Observation of Ξ_c(2930)⁰ and updated measurement of B^- → K^- Λ_c⁺(Λ)over-bar_c^- at Belle

  Ikuma Adachi

  EUROPEAN PHYSICAL JOURNAL C, 2018

  
• Measurement of time-dependent CP asymmetries in B⁰ → K⁰_Sηγ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Observation of an Excited Ω^- Baryon

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2018

  
• Observation of e⁺ e^- → π⁺ π^- π⁰χ_b1,2 (1P) and search for e⁺ e ^- → φχ_b1,2 (1P) at √s=10.96-11.05 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Observation of e⁺ e^- → γχ_c1 and search for e⁺ e^- → γχ_c0, γχ_c2, and γη_c at √s near 10.6 GeV at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Measurement of the decays Λc → Σππ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Measurement of η_c (1S), η_c(2S), and nonresonant η′π⁺π^- production via two-photon collisions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Angular analysis of the e ⁺e ^- → D⁽*^)±D*^∓ process near the open charm threshold using initial- state radiation

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Measurement of branching fractions of hadronic decays of the Ω_c⁰ baryon

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

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• Measurement of the branching fraction of B → D⁽*⁾ πlν at Belle using hadronic tagging in fully reconstructed events

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• Inclusive study of bottomonium production in association with an η meson in e⁺e^- annihilations near Υ(5S)

  Ikuma Adachi

  EUROPEAN PHYSICAL JOURNAL C, 2018

  
• Detectors for extreme luminosity: Belle II

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2018

  
• Evidence of a structure in (K)over-bar⁰Λ_c⁺ consistent with a charged Ξ_c(2930)⁺, and updated measurement of (B)over-bar⁰ → (K)over-bar⁰Λ_c⁺ (Λ)over-bar_c^- at Belle

  Ikuma Adachi

  EUROPEAN PHYSICAL JOURNAL C, 2018

  
• Measurement of cos 2β in B⁰ → D^(*)h⁰ with D → K⁰_Sπ⁺ π^- decays by a combined time-dependent Dalitz plot analysis of BABAR and Belle data

  Ikuma Adachi

  PHYSICAL REVIEW D, 2018

  
• First Evidence for cos 2β > 0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2018

  
• Search for the 0^-- glueball in Υ(1S) and Υ(2S) decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Search for D⁰ decays to invisible final states at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Studies of a hybrid avalanche photo-detector in magnetic field

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017

  
• Search for Λ_c⁺ → φpπ⁰ and branching fraction measurement of Λ_c⁺ → K^- π⁺ pπ⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Study of η and dipion transitions in Υ(4S) decays to lower bottomonia

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Search for B → hν(ν)over-bar decays with semileptonic tagging at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Search for light tetraquark states in Υ(1S) and Υ(2S) decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• The aerogel Ring Imaging Cherenkov system at the Belle II spectrometer

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017

  
• Test of the HAPD light sensor for the Belle II Aerogel RICH

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017

  
• Observation of D⁰ → ρ⁰γ and Search for CP Violation in Radiative Charm Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2017

  
• Erratum to: Search for B decays to final states with the η _c meson (vol 06, 132, 2015)

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2017

  
• Lepton-Flavor-Dependent Angular Analysis of B → K*l⁺l^-

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2017

  
• First measurement of T-odd moments in D⁰ → K_S⁰ π + π^-π⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Measurement of the τ Lepton Polarization and R(D*) in the Decay (B)over-bar → D* τ^- (v)over-bar_τ

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2017

  
• Observation of an alternative χ_c0(2P) candidate in e⁺e^-→J/ψD(D)over-bar

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Invariant-mass and fractional-energy dependence of inclusive production of dihadrons in e⁺ e^- annihilation at √s=10.58 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Measurement of the branching fraction and CP asymmetry in B⁰ → π⁰π⁰ decays, and an improved constraint on φ₂

  Ikuma Adachi

  PHYSICAL REVIEW D, 2017

  
• Evidence for Isospin Violation and Measurement of CP Asymmetries in B → K*(892)γ

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2017

  
• Development of the ARICH monitor system for the Belle II experiment

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017

  
• Construction of silica aerogel radiator system for Belle II RICH Counter

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017

  
• Search for B⁰ → π^-τ⁺ν_τ with hadronic tagging at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Study of π⁰ pair production in single-tag two-photon collisions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Study of B⁰ → ρ⁺ρ^- decays and implications for the CKM angle φ²

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Search for the rare decay D⁰ → γγ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Search for the decay B⁰ → φγ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Search for a massive invisible particle X⁰ in B⁺ → e⁺X⁰ and B⁺ → μ⁺X⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Studies of charmed strange baryons in the ΛD final state at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Study of excited Ξ_c states decaying into Ξ_c⁰ and Ξ_c⁺ baryons

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Search for a dark vector gauge boson decaying to π⁺π^- using η→π⁺π^- γ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Measurements of the Υ(10860) and Υ(11020) resonances via σ(e⁺e^- → Υ(nS)π⁺π^-)

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Measurement of the lepton forward-backward asymmetry in B → X_sl⁺l^- decays with a sum of exclusive modes

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• First observation of the decay B⁰ → ψ(2S)π⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Measurement of the decay B → Dlν_l in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element |V_cb|

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Inclusive and exclusive measurements of B decays to χ_c1 and χ_c2 at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Particle identification performance of the prototype aerogel RICH counter for the Belle II experiment

  Ikuma Adachi

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2016

  
• Observation of the Decay B_s⁰ → K⁰(K)over-bar⁰

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2016

  
• First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Λ_c⁺ → pK⁺π^-

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2016

  
• First observation of γγ → p(p)over-barK⁺K^- and search for exotic baryons in pK systems

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Measurement of the CKM angle φ₁ in B⁰ → (D)over-bar(*)⁰h⁰, (D)over-bar⁰ → K_S⁰π⁺π^- decays with time-dependent binned Dalitz plot analysis

  Ikuma Adachi

  PHYSICAL REVIEW D, 2016

  
• Energy Scan of the e⁺e^- → h_b(nP)π⁺π^- (n=1, 2) Cross Sections and Evidence for Υ(11020) Decays into Charged Bottomoniumlike States

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2016

  
• Search for the decay B⁺ → (K)over-bar*⁰K*⁺ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Study of D** production and light hadronic states in the (B)over-bar⁰ → D*⁺ωπ^- decay

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Semi-inclusive studies of semileptonic B_s decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Search for B⁺ → e⁺ν_e and B⁺ → μ⁺ν_μ decays using hadronic tagging

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Measurements of B → (D)over-barDs0*⁺(2317) decay rates and a search for isospin partners of the Ds0*⁺(2317)

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Search for the Dark Photon and the Dark Higgs Boson at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2015

  
• Search for B⁺ → l⁺ν_lγ decays with hadronic tagging using the full Belle data sample

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Search for B decays to final states with the η_c meson

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2015

  
• Measurements of B → (D)over-barD_s0*⁺ (2317) decay rates and a search for isospin partners of the D_s0*⁺ (2317) (vol 91, 092011, 2015)

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Measurement of the branching ratio of (B)over-bar → D⁽*⁾τ^-(ν)over-bar_τ relative to (B)over-bar → D(*)l^-(ν)over-bar_l decays with hadronic tagging at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Observation of B⁰ → p(Λ)over-barD(*)^-

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2015

  
• Search for B_s⁰ → γγ and a measurement of the branching fraction for B_s⁰ → φγ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Observation of X(3872) in B → X(3872)Kπ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Measurement of the Direct CP Asymmetry in over-bar & RARR; gamma; Decays with a Lepton Tag

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2015

  
• Development of a 144-channel Hybrid Avalanche Photo-Detector for Belle II ring-imaging Cherenkov counter with an aerogel radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2015

  
• Measurement of e⁺e^- → π⁺π^-ψ(2S) via initial state radiation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Evidence for the decay B⁰ → ηπ⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Measurement of e⁺e^- → γχ_cJ via initial state radiation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• First Observation of CP Violation in (B)over-bar⁰ → D_CP^(*)h⁰ Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2015

  
• Measurement of the branching fraction of B⁺ → τ⁺ν_τ decays with the semileptonic tagging method

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Inclusive cross sections for pairs of identified light charged hadrons and for single protons in e⁺e^- at √s=10.58 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Measurement of B⁰ → D_s^-K_S⁰π⁺ and B⁺ → D_s^-K⁺K⁺ branching fractions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Measurement of the (B)over-bar → X_sγ branching fraction with a sum of exclusive decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Amplitude analysis of e⁺e^- → Υ(nS)π⁺π^- at √s=10.866 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2015

  
• Search for the process e⁺e^- → J/ψX(1835) at √s ≈ 10.6 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Search for B^o → p(Λ)over-barπ^-γ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Publisher's Note: Observation of D⁰-(D)over-bar⁰ Mixing in e⁺e^- Collisions (vol 111, 111801, 2014)

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2014

  
• Updated cross section measurement of e⁺e^-→K⁺K^-J/Ψ and K_s⁰K_s⁰J/Ψ via initial state radiation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Search for doubly charmed baryons and study of charmed strange baryons at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Search for CP Violation in D⁰ → π⁰π⁰ Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2014

  
• The Physics of the B Factories

  Ikuma Adachi

  EUROPEAN PHYSICAL JOURNAL C, 2014

  
• Measurement of the τ-lepton Lifetime at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2014

  
• Observation of D⁰-(D)over-bar⁰ Mixing in e⁺ e^- Collisions

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2014

  
• Measurements of branching fractions of τ lepton decays with one or more K⁰_S

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Measurements of the masses and widths of the (2455) and (2520) baryons

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Observation of e⁺e^- → π⁺π^- π⁰χ_bJ and Search for X_b → ωΥ(1S) at √s=10.867 GeV

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2014

  
• Observation of the decay B⁰ → η′K* (892)⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Measurement of time-dependent CP violation in B⁰ - η′K⁰ decays

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2014

  
• Monte Carlo study of a Belle II proximity focusing RICH with aerogel as a radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2014

  
• Measurement of the inclusive semileptonic branching fraction B(B_s⁰ → X^-l⁺ν_l) at Belle (vol 87, 072008, 2013)

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Observation of a new charged charmoniumlike state in B⁰ → J/ψK^- π⁺ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Evidence for semileptonic B^- → p(p)over-barl^-(ν)over-bar_l decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Measurement of branching fractions for B → J/ψη K decays and search for a narrow resonance in the J/ψη final state

  Ikuma Adachi

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2014

  
• Measurement of D⁰-(D) over bar⁰ mixing and search for indirect CP violation using D⁰ → K_S⁰π⁺π^- decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Measurement of branching fractions and CP violation parameters in B → ωK decays with first evidence of CP violation in B⁰ → ωK⁰_s

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Measurement of the Branching Fraction B(Λ_c⁺ → pK^-π⁺)

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2014

  
• A 144-channel HAPD for the Aerogel RICH at Belle II

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2014

  
• Evidence of Υ(1S) → J/Ψ +χ_c1 and search for double-charmonium production in Υ(1S) and Υ(2S) decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2014

  
• Study of the hadronic transitions Y(2S) → (η, π⁰)Y(1S) at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Search for lepton-flavor and lepton-number-violating τ → lhh′ decay modes

  Ikuma Adachi

  PHYSICS LETTERS B, 2013

  
• Search for heavy neutrinos at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Search for an H-Dibaryon with a Mass near 2m_Δ in Y(1S) and Y(2S) Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2013

  
• Study of e⁺e^- → π⁺π^- J/ψ and Observation of a Charged Charmoniumlike State at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2013

  
• Study of exclusive B → X_ulv decays and extraction of |V_ub| using full reconstruction tagging at the Belle experiment

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Measurements of branching fractions and direct CP asymmetries for B → Kπ, B → ππ and B → KK decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Observation of ψ(4040) and ψ(4160) decay into ηJ/ψ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Search for CP Violation in the Decay D⁺ → K_S⁰K⁺

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2013

  
• Measurement of the inclusive semileptonic branching fraction B(B_s⁰ → X^-l⁺v_l) at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Search for B → h⁽*⁾ν(ν)over-bar with the full Belle Υ(4S) data sample

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Precision Measurement of Charged Pion and Kaon Differential Cross Sections in e⁺e^- Annihilation at √s=10.52 GeV

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2013

  
• Search for Bottomonium States in Exclusive Radiative Υ(2S) Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2013

  
• Measurements of branching fractions of leptonic and hadronic D_s⁺ meson decays and extraction of the D_s⁺ meson decay constant

  Ikuma Adachi

  JOURNAL OF HIGH ENERGY PHYSICS, 2013

  
• Measurement of the wrong-sign decay D⁰ → K⁺π^-π⁺π^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Measurement of the decays B_s⁰ → J/ψφ(1020), B_s⁰ → J/ψf₂′(1525) and B_s⁰ → J/ψK⁺K^- at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Evidence for the decay B⁰ → K⁺K^- π⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Evidence of a New Narrow Resonance Decaying to χ_c1γ in B → χ_c1γK

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2013

  
• Measurement of exclusive Υ(1S) and Υ(2S) decays into vector-pseudoscalar final states

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• First observation of the Z_b⁰(10610) in a Dalitz analysis of Υ(10860) → Υ(nS)π⁰π⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Measurement of e⁺e^- → ωπ⁰, K*(892)(K)over-bar and K₂*(1430)(K)over-bar at √s near 10.6 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• First observation of Cabibbo-suppressed Ξ_c⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Experimental constraints on the spin and parity of the Z(4430)⁺

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Evidence for the suppressed decay B^- → DK^-, D → K⁺ π^-π⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Measurement of the CP violation parameters in B⁰ → π⁺ π^- decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• High-statistics study of K_S⁰ pair production in two-photon collisions

  Ikuma Adachi

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2013

  
• Evidence for B^- → t^-(v)over-bar_t with a Hadronic Tagging Method Using the Full Data Sample of Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2013

  
• Angular analysis of B⁰ → φK* decays and search for CP violation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2013

  
• Evidence for (B)over-bar_s⁰ → Λ_c⁺(Λ)over-barπ^-

  Ikuma Adachi

  PHYSICS LETTERS B, 2013

  
• Search for double charmonium decays of the P-wave spin-triplet bottomonium states

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Search for the decay B⁰ → DK*⁰ followed by D → K^- π⁺

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Search for B⁰ decays to invisible final states at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Search for B → φπ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Search for Time-Dependent CPT Violation in Hadronic and Semileptonic B Decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• First Observation of the P-Wave Spin-Singlet Bottomonium States h_b(1P) and h_b(2P)

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2012

  
• Observation of Two Charged Bottomoniumlike Resonances in Y(5S) Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2012

  
• Measurement of B⁰ → J/ψη^(′) and constraint on the η - η′ mixing angle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Measurements of branching fractions and time-dependent CP violating asymmetries in B⁰ → D⁽*^)±D^∓ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Precise Measurement of the CP Violation Parameter sin2φ₁ in B⁰ → (c(c)over-bar)K⁰ Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2012

  
• Measurement of azimuthal asymmetries in inclusive production of hadron pairs in e⁺e^- annihilation at √s=10.58 GeV (vol 78, 032011, 2008)

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Observation of exclusive Y(1S) and Y(2S) decays into light hadrons

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• First observation of CP violation and improved measurement of the branching fraction and polarization of B⁰ → D*⁺ D*^- decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Measurement of γγ* → π⁰ transition form factor at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Measurement of branching fraction and first evidence of CP violation in B⁰ → a₁^±(1260)π^∓ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Evidence for CP Violation in the Decay D⁺ → K_S⁰π⁺ (vol 109, 021601, 2012)

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2012

  
• Evidence for B^- → D_s⁺K^-l^-(ν)over-bar_l and search for B^- → D_s*⁺K^-l^-(ν)over-bar_l

  Ikuma Adachi

  PHYSICAL REVIEW D, 2012

  
• Evidence for the η_b(2S) and Observation of h_b(1P) → η_b(1S)γ and h_b(2P) → η_b(1S)γ

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2012

  
• Development of a RICH counter with 144-ch Hybrid Avalanche Photo-Detectors for the Belle II experiment

  Ikuma Adachi

  2012 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE RECORD (NSS/MIC), 2012

  
• Photonis MCP PMT as a light sensor for the Belle II RICH

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2011

  
• Study of the decays B → Ds1(2536)⁺ (D)over-bar⁽*⁾

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Study of the decays B → Ds1(2536)⁺ (D)over-bar(vol 83, 051102, 2011)

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Observation of Transverse Polarization Asymmetries of Charged Pion Pairs in e⁺e^- Annihilation near √s=10.58 GeV

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2011

  
• Observation of X(3872) → J/ψγ and Search for X(3872) → ψ′γ in B Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2011

  
• Observation of B^- → (p)over-barΛD⁰ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Search for lepton-number-violating B⁺→D^-l⁺l′⁺ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Search for charmonium and charmoniumlike states in γ(2S) radiative decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Observation of D⁺ → K⁺η⁽'⁾ and Search for CP Violation in D⁺ → π⁺η⁽'⁾ Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2011

  
• Measurement of e⁺e^- → D_s^(*)+D_s^(*)- cross sections near threshold using initial-state radiation

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Measurement of the decay B⁰ → π^- l⁺ ν and determination of |V_ub|

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Evidence for the Suppressed Decay B^- → DK^-, D → K⁺π-

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2011

  
• Bounds on the width, mass difference and other properties of X(3872) → π⁺π^- J/ψ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• First observation of radiative B⁰ → φK⁰γ decays and measurements of their time-dependent CP violation

  Ikuma Adachi

  PHYSICAL REVIEW D, 2011

  
• Study of the B → X(3872)(→ D*⁰(D)over-bar⁰K decay

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Search for leptonic decays of D⁰ mesons

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Search for charmonium and charmoniumlike states in Y(1S) radiative decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Search for lepton flavor violating τ^- decays into l^-K_S⁰ l^-K_S⁰K_S⁰

  Ikuma Adachi

  PHYSICS LETTERS B, 2010

  
• Observation of B⁺ → (D)over-bar*⁰τ⁺ v_τ and evidence for B⁺ → (D)over-bar⁰τ⁺ v_τ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Search for B_s⁰ → hh decays at the Y(5S) resonance

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Observation of B_s⁰ → D_s⁽*⁾ + D_s⁽*⁾ Using e⁺e^- Collisions and a Determination of the B_s-(B)over-bar_s Width Difference ΔΓ_s

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2010

  
• Observation of an enhancement in e⁺e^- → γ(1S)π⁺π^-, γ(2S)π⁺π^-, and γ(3S)π⁺π^- production near √s=1.89 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Belle II Technical Design Report

  Ikuma Adachi

  Arxiv, 2010

  
• Measurement of |V_ub| from Inclusive Charmless Semileptonic B Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2010

  
• Measurement of the branching fractions for B⁰ → Ds^*+π^- and B⁰ → D_s^*-K⁺ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Evidence for direct CP violation in the decay B^± → D⁽*⁾ K^±, D → K_S⁰π⁺π^- and measurement of the CKM phase φ₃

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Measurement of Γ(5S) decays to B⁰ and B⁺ mesons

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Evidence for B → Kη′γ decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Measurements of branching fractions for B⁰ → D_s⁺ π^- and (B)over-bar⁰ → D_s⁺ K^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• First Measurement of Inclusive B → X_sη Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2010

  
• Measurement of ηη production in two-photon collisions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Measurement of the form factors of the decay B⁰ → D*^- l⁺ v_l and determination of the CKM matrix element |V_cb|

  Ikuma Adachi

  PHYSICAL REVIEW D, 2010

  
• Aerogel RICH for Belle II

  Ikuma Adachi

  35TH INTERNATIONAL CONFERENCE OF HIGH ENERGY PHYSICS (ICHEP 2010), 2010

  
• Study of Ω_c⁰ and Ω_c*⁰ baryons at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2009

  
• Time-dependent Dalitz plot measurement of CP parameters in B⁰→K_S⁰π⁺π^- decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• Measurement of the Decay B_s⁰ → D_s^-π⁺ and Evidence for B_s⁰ → D_s^∓K^± in e⁺ e^- Annihilation at √s ≈ 10.87 GeV

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2009

  
• Precise measurement of hadronic τ-decays with an η meson

  Ikuma Adachi

  PHYSICS LETTERS B, 2009

  
• Observation of B⁰ → Λ(Λ)over-barK⁰ and B⁰ → Λ(Λ)over-barK*⁰ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• Search for the X(1812) in B^±→K^±ωφ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• Search for lepton-flavor-violating τ decay into a lepton and an f₀(980) meson

  Ikuma Adachi

  PHYSICS LETTERS B, 2009

  
• Observation of the φ(1680) and the Y(2175) in e⁺e^- → φπ⁺π^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• Measurements of charmless hadronic b → s penguin decays in the π⁺π^-K⁺π^- final state and first observation of B⁰ → ρ⁰K⁺π^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• Measurement of y_CP in D⁰ meson decays to the K_S⁰K⁺K^- final state

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry for B → K^(*)l⁺ l^-

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2009

  
• Measurement of cross sections of exclusive e⁺e^- → V P processes at √s=10.58 GeV

  Ikuma Adachi

  PHYSICS LETTERS B, 2009

  
• Dalitz analysis of B → Kπ⁺ψ′ decays and the Z(4430)⁺

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• High-statistics study of ηπ⁰ production in two-photon collisions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2009

  
• Study of charmonia in four-meson final states produced in two-photon collisions

  Ikuma Adachi

  EUROPEAN PHYSICAL JOURNAL C, 2008

  
• Study of the decay mechanism for B⁺ → p(p)over-barK⁺ and B⁺ → p(p)over-barπ⁺

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Search for lepton flavor violating τ decays into three leptons

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Search for resonant B^±→K^±h→K^±γγ decays at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Search for lepton-flavor-violatingy τ → lV⁰ decays at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Study of intermediate two-body decays in (B)over-bar⁰ → Σ_c(2455)⁰(p)over-barπ⁺

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Time-dependent CP-violating asymmetry in B⁰→ρ⁰γ decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Study of B→D^**lν with full reconstruction tagging

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Study of the suppressed B meson decay B^-→DK^-, D→K⁺π^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Observation of a resonancelike structure in the π^+-ψ′ mass distribution in exclusive B→Kπ^+-ψ′ decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Observation of the ψ(4415) → D(D)over-bar₂^*(2460) decay using initial-state radiation

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Production of new charmoniumlike states in e⁺e^-→J/ψD⁽*⁾(D)over-bar⁽*⁾ at √s ≈ 10.6 GeV

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Observation of anomalous Y(1S)π⁺π^- and Y(2S)π⁺π^- production near the Y(5S) resonance

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Search for B⁰→J/ψφ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Search for a CP asymmetry in Cabibbo-suppressed D⁰ decays

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Search for (B)over-bar⁰→Λ_c⁺(Λ)over-bar_c^- decay at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Observation of two resonancelike structures in the π⁺χ_c1 mass distribution in exclusive (B)overbar⁰→K^-π⁺χ_c1 decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Search for B→πl⁺l^- decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Search for B⁺→D*⁺π⁰ decay

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Observation of e⁺e^-→K⁺K^-J/ψ via initial-state radiation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Observation of D_s1(2536)⁺ → D⁺π^-K⁺ and angular decomposition of D_s1(2536)⁺→D*⁺K_S⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• New search for τ → μγ and τ → eγ decays at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Observation of a new D_sJ meson in B⁺→(D)over-bar⁰D⁰K⁺ decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Observation of a Near-Threshold Enhancement in the e⁺ e^-→ Λ_c⁺ Λ_c^- Cross Section Using Initial-State Radiation

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Observation of B_S⁰→φγ and search for B_S⁰→γγ decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Observation of B⁰ → p(p)over-barK*⁰ with a large K*⁰ polarization

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Measurements of time-dependent CP violation in B⁰ → (2S)K_S⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Measurement of time-dependent CP-violating parameters in B⁰→K_S⁰K_S⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Observation of B^±→ψ(2S)π^± and search for direct CP violation

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Measurement of the ratio B(D⁰→π⁺π^-π⁰)/B(D⁰→K^-π⁺π⁰) and the time-integrated CP asymmetry in D⁰→π⁺π^-π⁰

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Measurement of masses of the Ξ_c(2645) and Ξ_c(2815) baryons and observation of Ξ_c(2980)→Ξ_c(2645)π

  Ikuma Adachi

  PHYSICS LETTERS B, 2008

  
• Measurement of the near-threshold e⁺e^-→D(D)over-bar cross section using initial-state radiation

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Measurement of the Time-Dependent CP Asymmetries in B⁰ → K⁰_Sρ⁰γ Decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b → dγ modes (vol 101, art no 111801, 2008)

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Measurement of azimuthal asymmetries in inclusive production of hadron pairs in e⁺e^- annihilation at √s=10.58 GeV

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Measurement of the moments of the photon energy spectrum in B→X_sγ decays and determination of |V_cb| and m_b at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Measurement of CP asymmetries and branching fractions in a time-dependent Dalitz analysis of B⁰→(ρπ)⁰ and a constraint on the quark mixing angle φ₂

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Measurement of the branching fraction and charge asymmetry of the decay B⁺→D⁺(D)over-bar⁰ and search for B⁰→D⁰(D)over-bar⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Difference in direct charge-parity violation between charged and neutral B meson decays

  Ikuma Adachi

  NATURE, 2008

  
• High-statistics measurement of neutral-pion pair production in two-photon collisions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Measurement of B⁰ → π⁺π^-π⁺π^- decays and search for B⁰ → ρ⁰ρ⁰

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• High-statistics study of the τ^-→π^-π⁰ν_τ decay

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Evidence for Neutral B Meson Decays to ωK*⁰

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Measurement of B(D_s⁺→μ⁺ν_μ)

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2008

  
• Improved search for D⁰-(D)over-bar⁰ mixing using semileptonic decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Evidence for B⁰ → χ_c1π⁰ at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2008

  
• Study of τ^- → K_sπ^- υ_τ decay at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2007

  
• Study of B⁺→ p Λγ, pΛπ⁰ and B⁰ → pΛπ^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Study of (B)over-bar⁰→D⁰π⁺π^- decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Study of the charmed baryonic decays (B)over-bar⁰→Σ_c⁺⁺ (p)over-barπ^- and (B)over-bar→Σ⁰_c(p)over-barπ⁺

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Search for lepton flavor violating τ^- decays into l^-η, l^-η′ and l^-π⁰

  Ikuma Adachi

  PHYSICS LETTERS B, 2007

  
• Observation of time-dependent CP violation in B⁰→η^′K⁰ decays and improved measurements of CP asymmetries in B⁰→φK⁰, K_S⁰K_S⁰K_S⁰ and B⁰→J/ψK⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Proximity focusing RICH with TOF capabilities

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007

  
• Search for invisible decay of the Υ(1S)

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Proximity focusing RICH with TOF capabilities

  Ikuma Adachi

  NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2007

  
• Observation of two resonant structures in e⁺e^-→π⁺π^-ψ(2S) via initial-state radiation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Search for B⁰→p(p)over-bar, Λ(Λ)over-bar and B⁺→p(Λ)over-bar at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Search for B→h^(*)ν(ν)over-bar decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Search for B⁺→J/ψη′K⁺ and B⁰→J/ψη′K_S⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Search for the CP-Violating Decays Υ(4S)→B⁰B⁰→J/ψK_S⁰+J/ψ(η_c)K_S⁰

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Observation of the decay B⁰→J/ψη

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Observation of direct CP violation in B⁰→π⁺π^- decays and model-independent constraints on the quark-mixing angle φ₂

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Observation of B decays to two kaons

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Moments of the hadronic invariant mass spectrum in B → X_clν decays at Belle

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Moments of the electron energy spectrum and partial branching fraction of B → X_ceν decays at the Belle detector

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Observation of a charmoniumlike state produced in association with a J/ψ in e⁺e^- annihilation at √s≈10.6 GeV

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Observation of the decay Υ(4S)→Υ(1S)π⁺ π^-

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Observation of B⁰→D^*-τ⁺ν_τ decay at belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Measurements of time-dependent CP violation in B⁰→ωK_S⁰, f₀(980)K_S⁰, K_S⁰π⁰ and K⁺K^-K_S⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Observation of the decay (B)over-bar⁰ → D_s⁺ Λ (p)over-bar

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Measurements of branching fractions and q² distributions for B → πlν and B → ρlν decays with B → D⁽*⁾lν decay tagging

  Ikuma Adachi

  PHYSICS LETTERS B, 2007

  
• Measurement of charmless B decays to ηK^* and ηρ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Measurement of inclusive D_s, D⁰, and J/ψ rates and determination of the B_s^(*) (B)over-bar_s^(*) production fraction in b(b)over-bar events at the Υ(5S) resonance

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Measurement of D⁰-(D)over-bar⁰ mixing parameters in D⁰→K_sπ⁺π^- decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Measurement of the τ lepton mass and an upper limit on the mass difference between τ⁺ and τ^-

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Measurement of the near-threshold e⁺e^-→D⁽*^)±D⁽*^)∓ cross section using initial-state radiation

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Measurement of the e⁺e^- → π⁺π^-J/ψ cross section via initial-state radiation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Measurement of branching fraction and time-dependent CP asymmetry parameters in B⁰→D^*+D^*-K_S⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Measurements of exclusive B_s⁰ decays at the Υ(5S) resonance

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Measurements of branching fractions for b→Kπ and b→ππ decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• A search for the rare leptonic decays B⁺→μ⁺ν_μ and B⁺→e⁺ν_e

  Ikuma Adachi

  PHYSICS LETTERS B, 2007

  
• A study of γ γ→K_S⁰K_S⁰ production at energies from 2.4 to 4.0 GeV at Belle -: Belle collaboration

  Ikuma Adachi

  PHYSICS LETTERS B, 2007

  
• Evidence for D⁰-(D)over-bar⁰ mixing

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• High statistics study of the f₀(980) resonance in γγ→π⁺π^- production

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Experimental constraints on the spin and parity of the Λ_c(2880)⁺

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Improved measurements of branching fractions and CP asymmetries in B → ηh decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Dalitz analysis of three-body charmless B⁰→K⁰ π⁺ π^- decay

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Measurement of CP asymmetry in a time-dependent Dalitz analysis of B0→(ρπ)⁰ and a constraint on the quark mixing matrix angle φ₂

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• Improved measurement of CP-violating parameters in B→ρ⁺ρ^- decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2007

  
• Evidence for CP violation in B⁰→D⁺D^- decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2007

  
• A novel type of proximity focusing RICH counter with multiple refractive index aerogel radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007

  
• Study of decay mechanisms in B^-→Λ_c⁺pπ^- decays and observation of low-mass structure in the Λ_c⁺p system

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Study of J/ψ→p(p)over-bar,Λ(Λ)over-bar and observation of η_c→Λ(Λ)over-bar at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Time-dependent CP asymmetries in B⁰→K_s⁰π⁰γ transitions

  Ikuma Adachi

  PHYSICAL REVIEW D, 2006

  
• Search for the Θ(1540)⁺ pentaquark using kaon secondary interactions at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2006

  
• Tests of the Burle 85011 64-anode MCP PMT as a detector of Cherenkov photons

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2006

  
• Study of B^±→D_CPK^± and D_CP^*K^± decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2006

  
• Search for the decay B⁰→γγ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2006

  
• Study of RICH Counter with Silica Aerogel Radiator

  Ikuma Adachi

  2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006

  
• Observation of b→dγ and determination of |V_td/V_ts|

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Measurement of forward-backward asymmetry and wilson coefficients in B → K^*l⁺l^-

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Observation of B⁺→(Ξ)over-bar_c⁰Λ_c⁺ and evidence for B⁰→(Ξ)over-bar_c^-Λ_c⁺

  Ikuma Adachi

  PHYSICAL REVIEW D, 2006

  
• Search for lepton and baryon number violating τ^- decays into (Λ)over-bar-π^- and Λπ^-

  Ikuma Adachi

  PHYSICS LETTERS B, 2006

  
• Measurement of branching fractions for B → X c1(2) K (K*) at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2006

  
• Measurement of the branching fraction, polarization, and CP asymmetry for B⁰→ρ⁺ρ^- decays, and determination of the Cabibbo-Kobayashi-Maskawa phase φ₂ - art. no. 171801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Observation of a χ′_c2 candidate in γγ→D(D)over-bar production at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Measurement of azimuthal asymmetries in inclusive production of hadron pairs in e⁺e^- annihilation at Belle

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Observation of B⁺→Λ_c⁺Λ_c^-K⁺ and B⁰→Λ_c⁺Λ_c^-K⁰ decays

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Proximity focusing RICH with TOF capabilities

  Ikuma Adachi

  2006 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOL 1-6, 2006

  
• Evidence of the purely leptonic decay B^- → τ^-(v)over-bar_τ

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Measurement of CP violation in B⁰→D^*-π⁺ and B⁰→D-π⁺ decays

  Ikuma Adachi

  PHYSICAL REVIEW D, 2006

  
• Improved measurements of color-suppressed decays (B)over-bar⁰→D⁰π⁰, D⁰η, D⁰ω, D^*0π⁰, D^*0η and D^*0ω

  Ikuma Adachi

  PHYSICAL REVIEW D, 2006

  
• Improved measurements of branching fractions and CP partial rate asymmetries for B→ωK and B→ωπ

  Ikuma Adachi

  PHYSICAL REVIEW D, 2006

  
• First observation of the decay τ^-→φK^-υ_τ

  Ikuma Adachi

  PHYSICS LETTERS B, 2006

  
• Improved constraints on D⁰-(D)over-bar⁰ mixing in D⁰ → K⁺ π^- decays from the Belle detector - art. no. 151801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2006

  
• Time-dependent C P violation effects in partially reconstructed B⁰ → D^*∓π^± decays

  Ikuma Adachi

  PHYSICS LETTERS B, 2005

  
• Spectra of prompt electrons from decays of B⁺ and B⁰ mesons and ratio of inclusive semielectronic branching fractions

  Ikuma Adachi

  PHYSICS LETTERS B, 2005

  
• Study of B⁰ → ρ^±π^∓ time-dependent CP violation at Belle - art. no. 121801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Studies of CP violation in B → J/ψΚ^* decays - art. no. 091601

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Search for D⁰-(D)over-bar⁰ mixing using semileptonic decays at Belle - art. no. 071101

  Ikuma Adachi

  PHYSICAL REVIEW D, 2005

  
• Observation of the D₁(2420) → Dπ⁺π^- decays - art. no. 221805

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Observation of a near-threshold ωJ/ψ mass enhancement in exclusive B→KωJ/ψ decays - art. no. 182002

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Observation of (B)over-bar⁰ → D_sJ^* (2317)⁺K^- decay - art. no. 061802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Proximity focusing RICH with flat panel PMT as photon detector and aerogel as radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005

  
• RICH with multiple aerogel layers of different refractive index

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005

  
• Measurements of the branching fraction and polarization in B⁺→ρ⁺K^*0 decays - art. no. 141801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Search for B⁰ → p(p)over-bar, B⁰ → Λ(Λ)over-bar, and B⁺ → p(Λ)over-bar at Belle - art. no. 072007

  Ikuma Adachi

  PHYSICAL REVIEW D, 2005

  
• Observation of B^-→J/ψΛ(p)over-bar and searches for B^-→J/ψΣ⁰(p)over-bar and B⁰→J/ψp(p)over-bar decays - art. no. 051105

  Ikuma Adachi

  PHYSICAL REVIEW D, 2005

  
• Measurements of B decays to two kaons - art. no. 231802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Search for B⁰ → J/ψD^-0 and B⁺ → J/ψD^-0π⁺ decays - art. no. 091107

  Ikuma Adachi

  PHYSICAL REVIEW D, 2005

  
• Improved measurement of the electroweak penguin process B → X_sl⁺l^- - art. no. 092005

  Ikuma Adachi

  PHYSICAL REVIEW D, 2005

  
• Improved measurement of CP-violation parameters sin2φ₁ and |λ|, B meson lifetimes, and B⁰-(B)over-bar⁰ mixing parameter Δm_d - art. no. 072003

  Ikuma Adachi

  PHYSICAL REVIEW D, 2005

  
• Improved measurement of CP-violation parameters sin2φ₁ and |λ|, B meson lifetimes, and B⁰-(B)over-bar⁰ mixing parameter Δm_d (vol D 71, art no 072003, 2005) -: art. no. 079903

  Ikuma Adachi

  PHYSICAL REVIEW D, 2005

  
• Measurement of γγ→p(p)over-bar production at Belle

  Ikuma Adachi

  PHYSICS LETTERS B, 2005

  
• Measurement of ¦V_ub| near the endpoint of the electron momentum spectrum from semileptonic B-meson decays

  Ikuma Adachi

  PHYSICS LETTERS B, 2005

  
• Measurement of masses and branching ratios of Ξ_c⁺ and Ξ_c⁰ baryons (vol 605, pg 237, 2004)

  Ikuma Adachi

  PHYSICS LETTERS B, 2005

  
• Measurement of masses and branching ratios of Ξ⁺_c and Ξ⁰_c baryons

  Ikuma Adachi

  PHYSICS LETTERS B, 2005

  
• Improved evidence for direct CP violation in B0→π⁺π^- decays and model-independent constraints on φ₂ - art. no. 101801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Measurement of time-dependent CP-Violating asymmetries in B⁰→K_s⁰K_s⁰K_s⁰ decay - art. no. 061801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Measurement of the time-dependent CP-violating asymmetry in B⁰ → K_S⁰π⁰γ decays - art. no. 231601

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• A novel type of proximity focusing RICH counter with multiple refractive index aerogel radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005

  
• Evidence for B⁰→D⁺D^- and observation of B^-→D⁰D^- and B^-→D⁰D^*- decays - art. no. 041803

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2005

  
• Study of time-dependent CP violation in B⁰→J/ψπ⁰ decays - art. no. 261801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Study of B meson decays to three-body charmless hadronic final states - art. no. 012001

  Ikuma Adachi

  PHYSICAL REVIEW D, 2004

  
• Study of B^-→D^**0π^-(D^**0→D^(*)+π^-) decays - art. no. 112002

  Ikuma Adachi

  PHYSICAL REVIEW D, 2004

  
• Upper bound on the decay τ→μγ from the Belle detector -: art. no. 171802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Studies of a proximity focusing RICH with aerogel radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004

  
• Search for the lepton-flavor-violating decay τ^-→μ^-η at Belle -: art. no. 081803

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Tests of the BURLE 85011 micro-channel plate PMT as the detector of Cherenkov photons

  Ikuma Adachi

  2004 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-7, 2004

  
• Studies of a proximity focusing aerogel RICH for the belle upgrade

  Ikuma Adachi

  2004 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-7, 2004

  
• Studies of proximity focusing RICH with an aerogel radiator using flat-panel multi-anode PMTs (Hamamatsu H8500)

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004

  
• Search for neutrinoless decays ι → 3l

  Ikuma Adachi

  PHYSICS LETTERS B, 2004

  
• Measurement of |V_ub|using inclusive B→X_ulν decays with a novel X_u-reconstruction method -: art. no. 101801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Observation of large CP violation and evidence for direct CP violation in B0+p- decays -: art. no. 021601

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Proximity focusing RICH with flat panel PMT (Hamamatsu H8500) as photon detector and aerogel radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004

  
• Observation of B⁺→p(p)over-barπ⁺, B⁰→p(p)over-barK⁰, and B⁺→p(p)over-barK^*+ - art. no. 131801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Search for CP violation in the decay B⁰→D^*±D^∓ - art. no. 201802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Measurement of the branching fractions for B→ωK and B→ωπ - art. no. 012001

  Ikuma Adachi

  PHYSICAL REVIEW D, 2004

  
• Proposal of Cherenkov TOFPET with silica aerogel

  Ikuma Adachi

  2004 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-7, 2004

  
• Search for B^-→J/ψΛ(p)over-bar decay - art. no. 017101

  Ikuma Adachi

  PHYSICAL REVIEW D, 2004

  
• Observation of B⁰ → D^*-(5π)⁺, B⁺ → D^*-(4π)⁺⁺ and B⁺ → (D)over-bar^*0(5π)⁺ - art. no. 111103

  Ikuma Adachi

  PHYSICAL REVIEW D, 2004

  
• Improved measurements of the branching fractions for B→Kπ, ππ, and K(K)over-bar decays - art. no. 111102

  Ikuma Adachi

  PHYSICAL REVIEW D, 2004

  
• Inclusive measurement of the photon energy spectrum in b→sγ decays - art. no. 061803

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Evidence for direct CP violation in B⁰→K⁺π^- decays - art. no. 191802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Measurement of the B→K*γ branching fractions and asymmetries - art. no. 112001

  Ikuma Adachi

  PHYSICAL REVIEW D, 2004

  
• Evidence for B⁺→ωl⁺ν - art. no. 131803

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2004

  
• Study of time-dependent CP-violating asymmetries in b→s(q)over-bar-q decays - art. no. 031102

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Tests of a proximity focusing RICH with aerogel as radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003

  
• Study of (B)over-bar⁰→D^(*)0π⁺π^- decays

  Ikuma Adachi

  PHYSICS LETTERS B, 2003

  
• Observation of B^∓→ρ^∓ρ⁰ decays - art. no. 221801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Search for B⁰→l⁺l^- at the Belle detector -: art. no. 111101

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Observation of the decay (B)over-bar⁰→Λ_c⁺(p)over-bar - art. no. 121802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Observation of (B)over-bar⁰→D⁰(K)over-bar⁰ and (B)over-bar⁰→D⁰(K)over-bar^*0 decays -: art. no. 141802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Search for the electric dipole moment of the τ lepton

  Ikuma Adachi

  PHYSICS LETTERS B, 2003

  
• Studies of B⁰-(B)over-bar⁰ mixing properties with inclusive dilepton events - art. no. 052004

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Observation of a narrow charmoniumlike state in exclusive B^±→K^±π⁺π^-J/ψ decays -: art. no. 262001

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Observation of B→K^*l⁺l^- - art. no. 261601

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Observation of the DsJ(2317) and DsJ(2457) in B decays -: art. no. 262002

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Measurement of time-dependent CP-violating asymmetries in B⁰→φK_S⁰, K⁺K^-K_S⁰, and η^′K_S⁰ decays - art. no. 261602

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Measurement of K ⁺K^- production in two-photon collisions in the resonant-mass region

  Ikuma Adachi

  EUROPEAN PHYSICAL JOURNAL C, 2003

  
• Measurement of the B⁰-(B)over-bar⁰ mixing rate with B⁰((B)over-bar⁰)→D*^∓π^± partial reconstruction -: art. no. 092004

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Measurement of the electroweak penguin process B→X_sl;⁺l^- - art. no. 021801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Measurement of branching fractions and charge asymmetries for two-body B meson decays with charmonium - art. no. 032003

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Evidence for CP-violating asymmetries in B⁰→π⁺π^- decays and constraints on the CKM angle φ₂ - art. no. 012001

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Measurement of branching fractions for B→η_cK^(*) decays -: art. no. 071801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Measurement of branching fraction ratios and CP asymmetries in B^±→D_CPK± - art. no. 051101

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Improved measurement of the partial-rate CP asymmetry in B⁺→K⁰π⁺ and B^-→(K)over-bar⁰π^- decays - art. no. 011103

  Ikuma Adachi

  PHYSICAL REVIEW D, 2003

  
• Evidence for B⁰→π⁰π⁰ -: art. no. 261801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Measurement of branching fractions and polarization in B→φK^(*) decays - art. no. 201801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Evidence for B → φφK -: art. no. 241802

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2003

  
• Study of exclusive Β decays to charmed baryons -: art. no. 091102

  Ikuma Adachi

  PHYSICAL REVIEW D, 2002

  
• The Belle detector

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002

  
• Observation of χ_c2 production in B meson decay - art. no. 011803

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2002

  
• Study of CP-violating asymmetries in B⁰→π⁺π^- decays - art. no. 071801

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2002

  
• Measurement of χ_c2 production in two-photon collisions

  Ikuma Adachi

  PHYSICS LETTERS B, 2002

  
• Observation of mixing-induced CP violation in the neutral B meson system - art. no. 032007

  Ikuma Adachi

  PHYSICAL REVIEW D, 2002

  
• Improved measurement of mixing-induced CP violation in the neutral B meson system - art. no. 071102

  Ikuma Adachi

  PHYSICAL REVIEW D, 2002

  
• Observation of D_s⁺K^- and evidence for D_s⁺π^- final states in neutral B decays - art. no. 231804

  Ikuma Adachi

  PHYSICAL REVIEW LETTERS, 2002

  
• Charmless hadronic two-body Β meson decays -: art. no. 092002

  Ikuma Adachi

  PHYSICAL REVIEW D, 2002

  
• Search for direct CP violation in B→K π decays -: art. no. 071101

  Ikuma Adachi

  PHYSICAL REVIEW D, 2001

  
• Measurement of inclusive production of neutral pions from Y(4S) decays -: art. no. 072001

  Ikuma Adachi

  PHYSICAL REVIEW D, 2001

  
• Aerogel Cherenkov counter for the BELLE detector

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000

  
• Silica aerogel cherenkov counter for the KEK B-factory experiment

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1999

  
• Monte-Carlo simulation for an aerogel Cherenkov counter

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998

  
• The monitoring system for the aerogel Cherenkov counter of the BELLE detector

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998

  
• Electronic detection of focused Cherenkov rings from aerogel

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997

  
• Study on fine-mesh PMTs for detection of aerogel Cherenkov light

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997

  
• Prototype studies of a fast RICH detector with a CsI photocathode

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996

  
• CsI reflective photocathodes and their use for RICH detectors experimental studies

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996

  
• Aerogel Cherenkov counter for the BELLE experiment

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996

  
• Measurement of radiation damage on a silica aerogel Cherenkov radiator

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996

  
• STUDY OF A THRESHOLD CHERENKOV COUNTER BASED ON SILICA AEROGELS WITH LOW REFRACTIVE-INDEXES

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995

  
• FIRST BEAM TESTS OF A FAST-RICH PROTOTYPE WITH VLSI READOUT ELECTRONICS

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995

  
• BEAM TESTS OF A FAST-RICH PROTOTYPE WITH VLSI READOUT ELECTRONICS

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994

  
• OPERATION OF A FAST-RICH PROTOTYPE WITH VLSI READOUT ELECTRONICS

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994

  
• STUDY OF A DRIFT CHAMBER FILLED WITH A HELIUM ETHANE MIXTURE

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993

  
• FEASIBILITY STUDY OF SINGLE-PHOTON COUNTING USING A FINE-MESH PHOTOTUBE FOR AN AEROGEL READOUT

  Ikuma Adachi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993

  
• Intrinsic recreation of moderately uncertain events in macaques

  Sakumi Iki; Haruhiko Iwaoki; Yuko Hattori; Ikuma Adachi

  iScience, Apr. 2026

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• Visual preference for previously familiar faces in Chimpanzees (Pan troglodytes).

  Aiko Ode; Ikuma Adachi; Tomoko Imura

  Scientific reports, 06 Mar. 2026

  
• Dissecting disgust and fear in chimpanzees: From facilitation to disruption of cognitive processes

  Cécile Sarabian; Andrew J.J. MacIntosh; André Gonçalves; Nobuyuki Kawai; Ikuma Adachi

  20 Nov. 2025

  
• Monkeys increase scratching when encountering unexpected good fortune

  Sakumi Iki; Ikuma Adachi

  Scientific Reports, 11 Mar. 2025

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• Affective bodily responses in monkeys predict subsequent pessimism, but not vice versa

  Sakumi Iki; Ikuma Adachi

  Proceedings of the Royal Society B: Biological Sciences, Feb. 2025

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• Chimpanzees utilize video as reference in a spatiotemporally distant search for hidden food

  Shenwen Xu; Masaki Tomonaga; Ikuma Adachi

  Royal Society Open Science, Sep. 2024

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• Staring death in the face: chimpanzees' attention towards conspecific skulls and the implications of a face module guiding their behaviour

  André Gonçalves; Yuko Hattori; Ikuma Adachi

  Royal Society Open Science, Mar. 2022

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• Body part categorical matching in chimpanzees (Pan troglodytes)

  Jie Gao; Ikuma Adachi

  Scientific Reports, 10 Jul. 2024

  
• Matching-to-Sample Task Training of a Killer Whale (Orcinus orca)

  Ayumu Santa; Koji Kanda; Tomoya Kako; Momoko Miyajima; Ikuma Adachi

  Animals, 07 Mar. 2024

  
• Fearful snake pictures make monkeys pessimistic

  Sakumi Iki; Ikuma Adachi

  iScience, Sep. 2023

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• No evidence of spatial representation of age, but “own-age bias” like face processing found in chimpanzees

  Yuri Kawaguchi; Masaki Tomonaga; Ikuma Adachi

  Animal Cognition, 2021

  
• Endodontic Treatment of a Maxillary Incisor Tooth in a Chimpanzee (Pan troglodytes).

  Wataru Saito; Tomoko Ikawa; Takumi Ogawa; Yasuko Momoi; Akihisa Kaneko; Takako Miyabe-Nishiwaki; Ikuma Adachi; Masaki Tomonaga; Juri Suzuki; Takatsugu Yamamoto

  Journal of veterinary dentistry, 04 Apr. 2023

  
• Chimpanzees (Pan troglodytes) detect strange body parts: an eye-tracking study.

  Jie Gao; Ikuma Adachi; Masaki Tomonaga

  Animal cognition, Aug. 2022

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• The impact of gravity changes onto time perception -Experiment under micro-gravity using parabolic flight-

  Adachi Ikuma; Nakamiya Masaki; Hirata Satoshi; Taguchi Mana; Kawakami Fumito; Tomonaga Masaki; Doi Takao; Matsuzawa Tetsuro

  The Proceedings of the Annual Convention of the Japanese Psychological Association, 25 Sep. 2018

  
• Impairment effect of infantile coloration on face discrimination in chimpanzees

  Yuri Kawaguchi; Koyo Nakamura; Masaki Tomonaga; Ikuma Adachi

  Royal Society Open Science, Nov. 2021

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• Nonparametric analysis of inter‐individual relations using an attention‐based neural network

  Takashi Morita; Aru Toyoda; Seitaro Aisu; Akihisa Kaneko; Naoko Suda‐Hashimoto; Ikuma Adachi; Ikki Matsuda; Hiroki Koda

  Methods in Ecology and Evolution, 20 Apr. 2021

  
• Effects of short-term isolation on social animals’ behavior: an experimental case study of Japanese macaque

  T Morita; A Toyoda; S Aisu; A Kaneko; N Suda-Hashimoto; I Adachi; I Matsuda; H Koda

  Ecological Informatics, 29 Mar. 2021

  
• Spontaneous categorization of tools based on observation in children and chimpanzees

  Gruber, T.; Frick, A.; Hirata, S.; Adachi, I.; Biro, D.

  Scientific Reports, 2019

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• 他者を思いやるこころの進化

  足立幾磨; レナータ・メンドンサ; 松沢哲郎

  科学, Oct. 2018

  
• 霊長類学者，宇宙と出会う

  足立幾磨

  科学, 2018

  
• Touch-screen-guided task reveals a prosocial choice tendency by chimpanzees (Pan troglodytes)

  Mendonça, R.S.; Dahl, C.D.; Carvalho, S.; Matsuzawa, T.; Adachi, I.

  PeerJ, 2018, Peer-reviewed

  
• ものの順序と空間のふしぎな関係

  足立幾磨

  科学, Jul. 2014

  
• Spontaneous spatial mapping of learned sequence in chimpanzees: Evidence for a SNARC-Like effect

  Adachi, I.

  PLoS ONE, 2014, Peer-reviewed

  
• WISH大型ケージ――チンパンジー研究のパラダイムシフト

  足立幾磨

  科学, Sep. 2013

  
• Developmental processes in face perception

  Dahl, C.D.; Rasch, M.J.; Tomonaga, M.; Adachi, I.

  Scientific Reports, 2013, Peer-reviewed

  
• Perception of the motion trajectory of objects from moving cast shadows in infant Japanese macaques (Macaca fuscata)

  Imura, T.; Adachi, I.; Hattori, Y.; Tomonaga, M.

  Developmental Science, 2013, Peer-reviewed

  
• Laterality effect for faces in chimpanzees (Pan troglodytes)

  Dahl, C.D.; Rasch, M.J.; Tomonaga, M.; Adachi, I.

  Journal of Neuroscience, 2013, Peer-reviewed

  
• The face inversion effect in non-human primates revisited-an investigation in chimpanzees (Pan troglodytes)

  Dahl, C.D.; Rasch, M.J.; Tomonaga, M.; Adachi, I.

  Scientific Reports, 2013, Peer-reviewed

  
• Conceptual metaphorical mapping in chimpanzees (Pan troglodytes)

  Dahl, C.D.; Adachi, I.

  eLife, 2013, Peer-reviewed

  
• Visuoauditory mappings between high luminance and high pitch are shared by chimpanzees (Pan troglodytes) and humans

  Ludwig, V.U.; Adachi, I.; Matsuzawa, T.

  Proceedings of the National Academy of Sciences of the United States of America, 2011, Peer-reviewed

  
• Rhesus monkeys see who they hear: Spontaneous cross-modal memory for familiar conspecifics

  Adachi, I.; Hampton, R.R.

  PLoS ONE, 2011, Peer-reviewed

  
• Reverse-reward Learning in Squirrel Monkeys (Saimiri sciureus): Retesting After 5 Years, and Assessment on Qualitative Transfer

  Adachi, I.; Anderson, J.R.; Fujita, K.

  Journal of Comparative Psychology, 2011, Peer-reviewed

  
• 動物園の新たな一歩

  足立幾磨

  発達, ミネルバ書房, 122, pp. 98- 106, 2010

  
• 感覚統合的表象を手掛かりとした霊長類の社会的認知研究

  足立幾磨

  心理学評論, 53, pp. 441-454, 2010, Peer-reviewed

  
• Rhesus monkeys (Macaca mulatta) rapidly learn to select dominant individuals in videos of artificial social interactions between unfamiliar conspecifics

  Paxton, R.; Basile, B.M.; Adachi, I.; Suzuki, W.A.; Wilson, M.E.; Hampton, R.R.

  Journal of Comparative Psychology, 2010, Peer-reviewed

  
• Asymmetric perception of radial expansion/contraction in Japanese macaque (Macaca fuscata) infants

  Shirai, N.; Imura, T.; Hattori, Y.; Adachi, I.; Ichihara, S.; Kanazawa, S.; Yamaguchi, M.K.; Tomonaga, M.

  Experimental Brain Research, 2010, Peer-reviewed

  
• Thatcher Effect in Monkeys Demonstrates Conservation of Face Perception across Primates

  Adachi, I.; Chou, D.P.; Hampton, R.R.

  Current Biology, 2009, Peer-reviewed

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• Cross-modal representations in primates and dogs: A new framework of recognition of social objects

  Adachi, I.

  Interaction Studies, 2009, Peer-reviewed

  
• Plasticity of ability to form cross-modal representations in infant Japanese macaques

  Adachi, I.; Kuwahata, H.; Fujita, K.; Tomonaga, M.; Matsuzawa, T.

  Developmental Science, 2009, Peer-reviewed

  
• 進化の隣人との出会い

  足立幾磨

  科学, 79, pp.222-223, 2009

  
• Cross-modal representation of human caretakers in squirrel monkeys

  Adachi, I.; Fujita, K.

  Behavioural Processes, 2007, Peer-reviewed

  
• Dogs recall their owner's face upon hearing the owner's voice

  Adachi, I.; Kuwahata, H.; Fujita, K.

  Animal Cognition, 2007, Peer-reviewed

  
• Performance of Pigeons (Columba livia) on Maze Problems Presented on the LCD Screen: In Search for Preplanning Ability in an Avian Species

  Hiromitsu Miyata; Tomokazu Ushitani; Ikuma Adachi; Kazuo Fujita

  JOURNAL OF COMPARATIVE PSYCHOLOGY, Nov. 2006, Peer-reviewed

  
• Japanese macaques form a cross-modal representation of their own species in their first year of life

  Adachi, I.; Kuwahata, H.; Fujita, K.; Tomonaga, M.; Matsuzawa, T.

  Primates, 2006, Peer-reviewed

  
• Development of schematic face preference in macaque monkeys

  H. Kuwahata; I. Adachi; K. Fujita; M. Tomonaga; T. Matsuzawa

  Behavioural Processes, Apr. 2004, Peer-reviewed

  
• A Capuchin monkey (Cebus apella) recognizes when people do and do not know the location of food

  H Kuroshima; K Fujita; Adachi, I; K Iwata; A Fuyuki

  ANIMAL COGNITION, Dec. 2003, Peer-reviewed

  
• チンパンジーのこころの左右

  足立幾磨

  心理学ワールド, Peer-reviewed