Basic Information

Email Address

• Email Address

  kitazawa.masakiyo.3akyoto-u.ac.jp

Academic Degree

• 25 Mar. 2002

  京都大学修士（理学）
• 23 Mar. 2005

  京都大学博士（理学）

Academic Resume (Undergraduate School/Majors)

• 筑波大学, 第一学群自然学類物理学専攻, 卒業

ID,URL

• ORCID ID

  0000-0002-5210-7649

• J-Global ID

  200901013237917980

• Researcher number

  10452418

• External link

  http://www2.yukawa.kyoto-u.ac.jp/~masakiyo.kitazawa/physics.html

researchmap URL

• https://researchmap.jp/read0111554

Research

Research Interests

• Quantum Chromodynamics
• relativistic heavy-ion collisions
• lattice QCD
• fluctuations
• critical point
• Lee-Yang zero

Research Areas

• Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Papers

• Anisotropic pressure and novel first-order phase transition in $SU(3)$ Yang-Mills theory on $\mathbb{T}^2\times\mathbb{R}^2$

  Daisuke Fujii; Akihiro Iwanaka; Masakiyo Kitazawa; Daiki Suenaga

  Proceedings of The XVIth Quark Confinement and the Hadron Spectrum Conference — PoS(QCHSC24), 24 Oct. 2025

  
• Femtoscopic study in the J-PARC-HI project

  Yudai Ichikawa; Kazuya Aoki; Masakiyo Kitazawa; Yuhei Morino; Hiroyuki Sako; Kazuhiro Tanaka

  Journal of Subatomic Particles and Cosmology, Jun. 2025

  
• Novel first-order phase transition and critical points on SU(3) Yang-Mills theory on $T^2\times R^2$

  Masakiyo Kitazawa; Daisuke Fujii; Akihiro Iwanaka; Daiki Suenaga

  Proceedings of The 41st International Symposium on Lattice Field Theory — PoS(LATTICE2024), 13 Feb. 2025

  
• Lattice study of RG fixed point based on gradient flow in $3$D $O(N)$ sigma model

  Okuto Morikawa; Mizuki Tanaka; Masakiyo Kitazawa; Hiroshi Suzuki

  PoS, 25 Oct. 2024, Peer-reviewed

  
• High-precision analysis of the critical point in heavy-quark QCD at Nt=6

  Ryo Ashikawa; Masakiyo Kitazawa; Shinji Ejiri; Kazuyuki Kanaya

  Physical Review D, 10 Oct. 2024

  
• Critical point in heavy-quark region of QCD on fine lattices

  Masakiyo Kitazawa; Ryo Ashikawa; Shinji Ejiri; Kazuyuki Kanaya; Hiroto Sugawara

  Proceedings of The 40th International Symposium on Lattice Field Theory — PoS(LATTICE2023), 04 Jan. 2024

  
• Chemical potential dependence of the endpoint of first-order phase transition in heavy-quark region of finite-temperature lattice QCD

  Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa

  Proceedings of The 40th International Symposium on Lattice Field Theory — PoS(LATTICE2023), 27 Dec. 2023

  
• Enhancement of dilepton production rate and electric conductivity around the QCD critical point

  Toru Nishimura; Masakiyo Kitazawa; Teiji Kunihiro

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, May 2023, Peer-reviewed

  
• Effective model for pure Yang-Mills theory on T2? R2 with Polyakov loops

  Daiki Suenaga; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Apr. 2023, Peer-reviewed

  
• Phase structure and critical point in heavy-quark QCD at finite temperature

  Kazuyuki Kanaya; Ryo Ashikawa; Shinji Ejiri; Masakiyo Kitazawa; Hiroshi Suzuki; Naoki Wakabayashi

  Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022), 26 Jan. 2023, Peer-reviewed

  
• Critical net-baryon fluctuations in an expanding system

  Gregoire Pihan; Marcus Bluhm; Masakiyo Kitazawa; Taklit Sami; Marlene Nahrgang

  PHYSICAL REVIEW C, Jan. 2023, Peer-reviewed

  
• Roles of Polyakov loops in Yang-Mills theory on ² × ℝ²

  Daiki Suenaga; Masakiyo Kitazawa

  EPJ Web of Conferences, 22 Dec. 2022

  
• The J-PARC heavy ion project

  Kyoichiro Ozawa; Kazuya Aoki; Shin-ichi Esumi; Taku Gunji; Takashi Hachiya; Hiroyuki Harada; Yudai Ichikawa; Masakiyo Kitazawa; Yasuo Miake; Yuhei Morino; Shoji Nagamiya; Yasushi Nara; Megumi Naruki; Takafumi Niida; Toshihiro Nonaka; Takehiko R. Saito; Takao Sakaguchi; Hiroyuki Sako; Susumu Sato; Hitoshi Takahashi; Hirokazu Tamura; Kazuhiro Tanaka; Satoshi Yokkaichi

  EPJ Web of Conferences, 09 Nov. 2022

  
• Anomalous enhancement of dilepton production as a precursor of color superconductivity

  Toru Nishimura; Masakiyo Kitazawa; Teiji Kunihiro

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, Aug. 2022, Peer-reviewed

  
• Scope and convergence of the hopping parameter expansion in finite-temperature quantum chromodynamics with heavy quarks around the critical point

  Naoki Wakabayashi; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa

  Progress of Theoretical and Experimental Physics, 11 Mar. 2022, Peer-reviewed

  
• Dilepton production rate near the critical temperature of color superconductivity

  Toru Nishimura; Masakiyo Kitazawa; Teiji Kunihiro

  14 Oct. 2021, Peer-reviewed

  
• Finite-size scaling around the critical point in the heavy quark region of QCD

  Atsushi Kiyohara; Masakiyo Kitazawa; Shinji Ejiri; Kazuyuki Kanaya

  31 Jul. 2021, Peer-reviewed

  
• More efficient formulas for efficiency correction of cumulants and effect of using averaged efficiency (vol 95, 064912, 2017)

  Toshihiro Nonaka; Masakiyo Kitazawa; ShinIchi Esumi

  PHYSICAL REVIEW C, Feb. 2021, Peer-reviewed

  
• Latent heat and pressure gap at the first-order deconfining phase transition of SU(3) Yang–Mills theory using the small flow-time expansion method

  Mizuki Shirogane; Shinji Ejiri; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda

  Progress of Theoretical and Experimental Physics, 26 Jan. 2021, Peer-reviewed

  
• Latent heat and pressure gap at the first-order deconfining phase transition of SU(3) Yang–Mills theory using the small flow-time expansion method

  Mizuki Shirogane; Shinji Ejiri; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda

  Progress of Theoretical and Experimental Physics, 01 Jan. 2021, Peer-reviewed

  
• Critical fluctuations in a dynamically expanding heavy-ion collision

  Masakiyo Kitazawa; Gregoire Pihan; Nathan Touroux; Marcus Bluhm; Marlene Nahrgang

  NUCLEAR PHYSICS A, Jan. 2021, Peer-reviewed

  
• Distribution of energy-momentum tensor around a static quark in the deconfined phase of SU(3) Yang-Mills theory

  Ryosuke Yanagihara; Masakiyo Kitazawa; Masayuki Asakawa; Tetsuo Hatsuda

  Physical Review D, 30 Dec. 2020, Peer-reviewed

  
• Pileup corrections on higher-order cumulants

  Toshihiro Nonaka; Masakiyo Kitazawa; ShinIchi Esumi

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

  
• Dynamics of critical fluctuations: Theory - phenomenology - heavy-ion collisions

  Marcus Bluhm; Alexander Kalweit; Marlene Nahrgang; Mesut Arslandok; Peter Braun-Munzinger; Stefan Floerchinger; Eduardo S. Fraga; Marek Gazdzicki; Christoph Hartnack; Christoph Herold; Romain Holzmann; Iurii Karpenko; Masakiyo Kitazawa; Volker Koch; Stefan Leupold; Aleksas Mazeliauskas; Bedangadas Mohanty; Alice Ohlson; Dmytro Oliinychenko; Jan M. Pawlowski; Christopher Plumberg; Gregory W. Ridgway; Thomas Schaefer; Ilya Selyuzhenkov; Johanna Stachel; Mikhail Stephanov; Derek Teaney; Nathan Touroux; Volodymyr Vovchenko; Nicolas Wink

  NUCLEAR PHYSICS A, Nov. 2020, Peer-reviewed

  
• Erratum: Nf=2+1 QCD thermodynamics with gradient flow using two-loop matching coefficients (Physical Review D (2020) 102 (014510) DOI: 10.1103/PhysRevD.102.014510)

  Yusuke Taniguchi; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Takashi Umeda

  Physical Review D, Sep. 2020, Peer-reviewed

  
• Nf=2+1 QCD thermodynamics with gradient flow using two-loop matching coefficients

  Yusuke Taniguchi; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Takashi Umeda

  Physical Review D, 20 Jul. 2020, Peer-reviewed

  
• Dynamically Integrated Transport Model for High-energy Nuclear Collisions at \(3 < \sqrt{s_{NN } } < 30\) GeV

  Koichi Murase; Yukinao Akamatsu; Masayuki Asakawa; Tetsufumi Hirano; Masakiyo Kitazawa; Kenji Morita; Yasushi Nara; Chiho Nonaka; Akira Ohnishi

  Proceedings of 13th International Conference on Nucleus-Nucleus Collisions, 16 Jul. 2020, Peer-reviewed

  
• End point of the first-order phase transition of QCD in the heavy quark region by reweighting from quenched QCD

  Shinji Ejiri; Shota Itagaki; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa; Atsushi Kiyohara; Mizuki Shirogane; Takashi Umeda

  PHYSICAL REVIEW D, Mar. 2020, Peer-reviewed

  
• Classifying topological sector via machine learning

  Masakiyo Kitazawa; Takuya Matsumoto; Yasuhiro Kohno

  CoRR, 28 Dec. 2019, Peer-reviewed

  
• Determination of the endpoint of the first order deconfiniement phase transition in the heavy quark region of QCD

  Shinji Ejiri; Shota Itagaki; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa; Atsushi Kiyohara; Mizuki Shirogane; Yusuke Taniguchi; Takashi Umeda

  Proceedings of Science, 24 Dec. 2019, Peer-reviewed

  
• Issues with Search for Critical Point in QCD with Relativistic Heavy Ion Collisions

  Masayuki Asakawa; Masakiyo Kitazawa; Berndt Müller

  Physical Review C, 12 Dec. 2019, Peer-reviewed

  
• Stress distribution in quark--anti-quark and single quark systems at nonzero temperature

  Ryosuke Yanagihara; Takumi Iritani; Masakiyo Kitazawa; Masayuki Asakawa; Tetsuo Hatsuda

  10 Dec. 2019, Peer-reviewed

  
• Erratum: Exploring Nf=2+1 QCD thermodynamics from the gradient flow (Physical Review D (2017) 96 (014509) DOI: 10.1103/PhysRevD.99.014509)

  Yusuke Taniguchi; Shinji Ejiri; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Takashi Umeda; Naoki Wakabayashi

  Physical Review D, 01 Mar. 2019, Peer-reviewed

  
• Thermodynamics in quenched QCD: energy--momentum tensor with two-loop order coefficients in the gradient flow formalism

  Takumi Iritani; Masakiyo Kitazawa; Hiroshi Suzuki; Hiromasa Takaura

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 16 Dec. 2018, Peer-reviewed

  
• Dispersion relations of charmonia above Tc

  Masakiyo Kitazawa; Atsuro Ikeda; Masayuki Asakawa

  EPJ Web of Conferences, 26 Mar. 2018, Peer-reviewed

  
• Photon production spectrum above T-c with a lattice quark propagator

  Taekwang Kim; Masayuki Asakawa; Masakiyo Kitazawa

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, Jan. 2018, Peer-reviewed

  
• Equation of state in (2+1)-flavor QCD from the gradient flow - first test at the physical point

  Kanaya,Kazayuki; Iwami,Ryo; Umeda,Takashi; Ejiri,Shinji; Kitazawa,Masakiyo; Suzuki,Hiroshi; Taniguchi,Yusuke; WHOT-QCD,Collaboration

  Meeting Abstracts of the Physical Society of Japan, 2018

  
• Properties of thermodynamic quantities near the first phase transition point observed using gradient flow method

  Shirogane,Mizuki; Ejiri,Shinji; Iwami,Ryo; Kanaya,Kazuyuki; Kitazawa,Masakiyo; Suzuki,Hiroshi; Taniguchi,Yusuke; Umeda,Takashi; Wakabayahi,Naoki

  Meeting Abstracts of the Physical Society of Japan, 2017

  
• Lattice spacing dependence of critical mass in the heavy quark region of QCD

  Itagaki,Shota; Iwami,Ryo; Umeda,Takashi; Ejiri,Shinji; Kanaya,Kazuyuki; Kitazawa,Masakiyo; Taniguchi,Yusuke

  Meeting Abstracts of the Physical Society of Japan, 2017

  
• Studies of high density baryon matter with high intensity heavy-ion beams at J-PARC

  H. Sako; H. Harada; T. Sakaguchi; T. Chujo; S. Esumi; T. Gunji; S. Hasegawa; S. H. Hwang; Y. Ichikawa; K. Imai; K. Itakura; M. Kaneta; B. C. Kim; M. Kinsho; M. Kitazawa; Y. Liu; H. Masui; S. Nagamiya; K. Nishio; M. Okamura; K. Oyama; K. Ozawa; P. K. Saha; A. Sakaguehi; S. Sato; K. Shigaki; H. Sugimura; K. Tanida; J. Tamura; H. Tamura; Y. Nara; T. R. Saito

  NUCLEAR PHYSICS A, Dec. 2016, Peer-reviewed

  
• Thermal blurring effects on fluctuations of conserved charges in rapidity space

  M. Asakawa; M. Kitazawa; Y. Onishi; M. Sakaida

  NUCLEAR PHYSICS A, Dec. 2016, Peer-reviewed

  
• Importance of third moments of fluctuations of conserved charges in relativistic heavy-ion collisions

  Masayuki Asakawa; Shinji Ejiri; Masakiyo Kitazawa

  EUROPEAN PHYSICAL JOURNAL A, Aug. 2016, Peer-reviewed

  
• Quenched QCDの一次相転移点における潜熱と圧力差

  白銀, 瑞樹; 江尻, 信司; 金谷, 和至; 北沢, 正清; 石見, 涼

  日本物理学会講演概要集, Mar. 2016

  
• dynamical critical fluctuations of conserved charges in the heavy ion collisions

  Sakaida Miki; Asakawa Masayuki; Kitazawa Masakiyo; Fujii Hirotsugu

  Meeting Abstracts of the Physical Society of Japan, 2016

  
• Efficient method for efficiency correction of event-by-event fluctuations

  Kitazawa Masakiyo

  Meeting Abstracts of the Physical Society of Japan, 2016

  
• Erratum: Thermodynamics of SU (3) gauge theory from gradient flow on the lattice (Physical Review D - Particles, Fields, Gravitation and Cosmology (2014) D 90 (011501))

  Masayuki Asakawa; Tetsuo Hatsuda; Etsuko Itou; Masakiyo Kitazawa; Hiroshi Suzuki

  Physical Review D - Particles, Fields, Gravitation and Cosmology, 22 Sep. 2015, Peer-reviewed

  
• Thermodynamics of SU(3) gauge theory from gradient flow on the lattice (vol 90, 011501, 2014)

  Masayuki Asakawa; Tetsuo Hatsuda; Etsuko Itou; Masakiyo Kitazawa; Hiroshi Suzuki

  PHYSICAL REVIEW D, Sep. 2015, Peer-reviewed

  
• 23pCD-8 Non-Markov effect on the time evolution of higher order fluctuations of conserved charges in relativistic heavy ion collisions

  Sakaida M.; Asakawa M.; Kitazawa M.

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 23pCD-13 『光子生成率の格子クォーク伝搬関数を用いた非摂動的解析』

  金 泰広; 浅川 正之; 北沢 正清

  日本物理学会講演概要集, 2015

  
• Fluctuations and QCD phase structure

  Masakiyo Kitazawa

  NUCLEAR PHYSICS A, Nov. 2014, Peer-reviewed

  
• Emergence of soft quark excitations by the coupling with a soft mode of the QCD critical point

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  PHYSICAL REVIEW D, 12 Sep. 2014, Peer-reviewed

  
• Shear viscosity to relaxation time ratio in SU(3) lattice gauge theory

  Yasuhiro Kohno; Masayuki Asakawa; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Mar. 2014, Peer-reviewed

  
• Diffusion of non-Gaussianity in heavy ion collisions

  Masakiyo Kitazawa; Masayuki Asakawa; Hirosato Ono

  14TH INTERNATIONAL CONFERENCE ON STRANGENESS IN QUARK MATTER (SQM2013), 2014, Peer-reviewed

  
• Dilepton production spectrum above Tc analyzed with a lattice quark propagator

  Taekwang Kim; Masayuki Asakawa; Masakiyo Kitazawa

  Proceedings of Science, 2014

  
• Charmonium spectra and dispersion relation with improved Bayesian analysis in lattice QCD

  Atsuro Ikeda; Masayuki Asakawa; Masakiyo Kitazawa

  Proceedings of Science, 2014

  
• Relation between baryon number fluctuations and experimentally observed proton number fluctuations in relativistic heavy ion collisions (vol 86, 024904, 2012)

  Masakiyo Kitazawa; Masayuki Asakawa

  PHYSICAL REVIEW C, Dec. 2012, Peer-reviewed

  
• QCD相図の実験的検証における、陽子およびバリオン数ゆらぎの役割について(基研研究会「熱場の量子論とその応用」,研究会報告)

  北沢 正清

  素粒子論研究, 2012

  
• Charmonium spectral functions at finite momenta in the gluon plasma from lattice QCD

  Chiho Nonaka; Masayuki Asakawa; Masakiyo Kitazawa; Yasuhiro Kohno

  JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, Dec. 2011, Peer-reviewed

  
• Third moments of conserved charges in phase diagram of QCD

  Masakiyo Kitazawa

  INTERNATIONAL CONFERENCE ON THE STRUCTURE OF BARYONS (BARYONS '10), 2011, Peer-reviewed

  
• 非閉じ込め相におけるクォーク自己エネルギーの格子QCDによる解析(スペクトル関数,熱場の量子論とその応用,研究会報告)

  北沢 正清

  素粒子論研究, 2011

  
• Lattice study of transport coefficients in second order dissipative hydrodynamics

  Yasuhiro Kohno; Masayuki Asakawa; Masakiyo Kitazawa; Chiho Nonaka

  Proceedings of Science, 2010

  
• Charmonium spectral functions in quark-gluon plasma from lattice QCD with large spatial volume

  Chiho Nonaka; Masayuki Asakawa; Takeyuki Hoshino; Masakiyo Kitazawa; Yasuhiro Kohno

  Proceedings of Science, 2010

  
• 励起モードの性質から探る有限温度QCD(QCD相図,熱場の量子論とその応用,研究会報告)

  北沢 正清

  素粒子論研究, 2010

  
• Quark propagator at finite temperature and finite momentum in quenched lattice QCD

  Frithjof Karsch; Masakiyo Kitazawa

  Physical Review D - Particles, Fields, Gravitation and Cosmology, 22 Jun. 2009, Peer-reviewed

  
• 有限温度におけるフェルミオン準粒子描像の変容とその軽粒子対生成率への影響(熱場の量子論とその応用,研究会報告)

  三ツ谷 和也; 北沢 正清; 国広 悌二

  素粒子論研究, 2009

  
• Bound diquarks and their Bose-Einstein condensation in strongly coupled quark matter

  Masakiyo Kitazawa; Dirk H. Rischke; Igor A. Shovkovy

  PHYSICS LETTERS B, May 2008, Peer-reviewed

  
• Spectral properties of massless and massive quarks coupled with massive boson at finite temperature

  Masakiyo Kitazawa; Teiji Kunihiro; Kazuya Mitsutani; Yukio Nemoto

  PHYSICAL REVIEW D, Feb. 2008, Peer-reviewed

  
• Measurement of shear viscosity in lattice gauge theory without Kubo formula

  Masakiyo Kitazawa; Masayuki Asakawa; Berndt Müller; Chiho Nonaka

  Proceedings of Science, 2008

  
• A Novel Quasi-Particle Picture of Massless and Massive Quarks Coupled with a Massive Boson at Finite Temperature and Its Effect on the Dilepton Production Rate

  Kazuya Mitsutani; Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2008, Peer-reviewed

  
• 有限質量ボゾンと結合する有限質量フェルミオンの準粒子描像 : ポール構造(熱場の量子論とその応用,研究会報告)

  三ツ谷 和也; 北沢 正清; 国広 悌二; 根本 幸雄

  素粒子論研究, 2008

  
• カイラル相転移における有限質量クォークスペクトル(熱場の量子論とその応用,研究会報告)

  根本 幸雄; 北沢 正清; 国広 悌二; 三ツ谷 和也

  素粒子論研究, 2008

  
• 格子QCDを用いた非閉じ込め相におけるクォークの動的性質の解析(熱場の量子論とその応用,研究会報告)

  北沢 正清

  素粒子論研究, 2008

  
• Spectral properties of quarks above T-c in quenched lattice QCD

  Frithjof Karsch; Masakiyo Kitazawa

  PHYSICS LETTERS B, Dec. 2007, Peer-reviewed

  
• Further analysis of excitations of quarks at finite temperature - Mass effect and pole structure

  Kazuya Mitsutani; Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, Aug. 2007, Peer-reviewed

  
• Spectrum of soft mode with thermal mass of quarks above critical temperature

  Yoshimasa Hidaka; Masakiyo Kitazawa

  INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, Aug. 2007, Peer-reviewed

  
• Bose-Einstein condensation of diquark molecules in three-flavor quark matter

  Masakiyo Kitazawa; Dirk H. Rischke; Igor A. Shovkovy

  PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 26 Jul. 2007, Peer-reviewed

  
• Chiral transition and mesonic excitations for quarks with thermal masses (vol 75, art no 011901, 2007)

  Yoshimasa Hidaka; Masakiyo Kitazawa

  PHYSICAL REVIEW D, May 2007, Peer-reviewed

  
• Fermionic collective modes in QGP near critical temperatures

  Yukio Nemoto; Masakiyo Kitazawa; Tomoi Koide; Teiji Kunihiro

  PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 10 Apr. 2007, Peer-reviewed

  
• Chiral transition and mesonic excitations for quarks with thermal masses

  Yoshimasa Hidaka; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Jan. 2007, Peer-reviewed

  
• Color Superconductivity at Strong Coupling(Hadrons at finite density)

  Kitazawa Masakiyo

  Soryushiron Kenkyu Electronics, 2006

  
• カイラル臨界点付近における秩序変数揺らぎのレプトン対生成への効果(熱場の量子論とその応用,基研研究会,研究会報告)

  根本 幸雄; 北沢 正清; 国広 悌二

  素粒子論研究, 2006

  
• How do chiral condensates affect color superconducting quark matter under charge neutrality constraints?

  H Abuki; M Kitazawa; T Kunihiro

  PHYSICS LETTERS B, May 2005, Peer-reviewed

  
• Single Quark Spectrum above Chiral Phase Transition Points

  根本 幸雄; 北沢 正清; 国広 悌二

  Soryushiron Kenkyu Electronics, 2005

  
• カラー超伝導におけるゆらぎの効果(基研研究会「熱場の量子論とその応用」,研究会報告)

  北沢 正清

  素粒子論研究, 2005

  
• Effects of the Chiral Transition on Quark Spectrum(Thermal Quantum Field Theories and Their Applications)

  根本 幸雄; 北沢 正清; 国広 悌二

  Soryushiron Kenkyu Electronics, 2005

  
• Effective equation for pair field in color superconductivity(Non-equilibrium Dynamics in the QCD Phase Transitions)

  Kitazawa Masakiyo

  Soryushiron Kenkyu Electronics, 2005

  
• Pseudogap of color superconductivity in heated quark matter

  M Kitazawa; T Koide; T Kunihiro; Y Nemoto

  PHYSICAL REVIEW D, Sep. 2004, Peer-reviewed

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• カラー超伝導に付随した擬ギャップ現象(熱場の量子論とその応用,研究会報告)

  北沢 正清

  素粒子論研究, 2004

  
• Pseudogap phenomenon of color superconductivity in dense quark matter(Quantum Field Theories: Fundamental Problems and Applications)

  北沢 正清

  Soryushiron Kenkyu Electronics, 2004

  
• QCD相転移の臨界点近傍における非平衡ダイナミクスについて(RHIC、SPSでの高エネルギー重イオン実験の現象論的解析,研究会報告)

  北沢 正清

  素粒子論研究, 2004

  
• Pseudogap of color superconductivity in heated quark matter

  M. Kitazawa; T. Koide; T. Kunihiro; Y. Nemoto

  Physical Review D - Particles, Fields, Gravitation and Cosmology, 2004, Peer-reviewed

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• Pseudogap of color superconductivity in heated quark matter

  M. Kitazawa; T. Koide; T. Kunihiro; Y. Nemoto

  Physical Review D - Particles, Fields, Gravitation and Cosmology, 2004, Peer-reviewed

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• Effects of vector coupling on chiral and color-superconducting phase transitions - interplay among the scalar, pairing and interaction

  M Kitazawa; T Koide; T Kunihiro; Y Nemoto

  NUCLEAR PHYSICS A, Jun. 2003, Peer-reviewed

  
• Precursor of color superconductivity

  M Kitazawa; T Koide; T Kunihiro; Y Nemoto

  NUCLEAR PHYSICS A, Jun. 2003, Peer-reviewed

  
• Interplay between Chiral Symmetry Breaking and Color Superconductivity in High Density Quark Matter(Quantum Field Theories: Fundamental Problems and Applications)

  北沢 正清

  Soryushiron Kenkyu Electronics, 2003

  
• 2.7 Effects of Vector Coupling on Chiral and Color-superconducting Phase Transitions : interplay among the scalar, pairing and vector interaction

  北沢 正清

  Soryushiron Kenkyu Electronics, 2003

  
• Precursor of color superconductivity in hot quark matter

  M Kitazawa; T Koide; T Kunihiro; Y Nemoto

  PHYSICAL REVIEW D, May 2002, Peer-reviewed

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• カラー超伝導における前駆現象(場の量子論の基礎的諸問題と応用,研究会報告)

  北沢 正清; 小出 知威; 国広 悌二; 根本 幸雄

  素粒子論研究, 2002

  
• カラー超伝導およびカイラル相転移へのベクトル型相互作用の効果(場の量子論の基礎的諸問題と応用,研究会報告)

  北沢 正清; 小出 知威; 国広 悌二; 根本 幸雄

  素粒子論研究, 2002

  
• Precursor of color superconductivity in hot quark matter

  M. Kitazawa; T. Koide; T. Kunihiro; Y. Nemoto

  Physical Review D - Particles, Fields, Gravitation and Cosmology, 2002, Peer-reviewed

  Access this paper :

  

Misc.

• Locally optimized fixed-point implicit solver for relativistic hydrodynamics

  村瀬功一; 村瀬功一; TOUROUX Nathan; TOUROUX Nathan; TOUROUX Nathan; 北沢正清; NAHRGANG Marlene

  日本物理学会講演概要集(CD-ROM), 2024

  
• Lee-Yang zeros around the critical point of heavy-quark-QCD

  和田辰也; 北澤正清; 金谷和至

  日本物理学会講演概要集(CD-ROM), 2024

  
• Analysis of Fixed Point in 3-Dimensional O(N) Scalar Model Using Gradient Flow

  田中瑞樹; 北澤正清; 森川億人; 鈴木博

  日本物理学会講演概要集(CD-ROM), 2022

  
• A study of stress-tensor distribution around the flux tube in the Abelian-Higgs model (vol 2019, 093B02, 2019)

  Ryosuke Yanagihara; Masakiyo Kitazawa

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, Jul. 2020

  
• Calculation of PCAC mass with Wilson fermion using gradient flow

  Atsushi Baba; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa; Asobu Suzuki; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda

  06 Jan. 2020, Peer-reviewed

  
• Study of 2+1 flavor finite-temperature QCD using improved Wilson quarks at the physical point with the gradient flow

  Kazuyuki Kanaya; Atsushi Baba; Asobu Suzuki; Shinji Ejiri; Masakiyo Kitazawa; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda

  29 Oct. 2019, Peer-reviewed

  
• Classifying Topological Charge in SU(3) Yang-Mills Theory with Machine Learning

  Takuya Matsumoto; Masakiyo Kitazawa; Yasuhiro Kohno

  CoRR, 13 Sep. 2019, Peer-reviewed

  
• A study of stress-tensor distribution around the flux tube in the Abelian-Higgs model

  Ryosuke Yanagihara; Masakiyo Kitazawa

  PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, Sep. 2019, Peer-reviewed

  
• Anisotropic pressure induced by finite-size effects in SU(3) Yang-Mills theory

  Masakiyo Kitazawa; Sylvain Mogliacci; Isobel Kolbe; W. A. Horowitz

  PHYSICAL REVIEW D, May 2019, Peer-reviewed

  
• Distribution of stress tensor around static quark-anti-quark from Yang-Mills gradient flow

  Ryosuke Yanagihara; Takumi Iritani; Masakiyo Kitazawa; Masayuki Asakawa; Tetsuo Hatsuda

  PHYSICS LETTERS B, Feb. 2019, Peer-reviewed

  
• Dynamically Integrated Transport Approach for High-Energy Nuclear Collisions at High Baryon Density

  Koichi Murase; Yukinao Akamatsu; Masayuki Asakawa; Tetsufumi Hirano; Masakiyo Kitazawa; Kenji Morita; Yasushi Nara; Chiho Nonaka; Akira Ohnishi

  Proceedings of the 8th International Conference on Quarks and Nuclear Physics (QNP2018), 31 Jan. 2019, Peer-reviewed

  
• Exploring non-Abelian gauge theory with energy-momentum tensor; stress, thermodynamics and correlations

  Masakiyo Kitazawa

  20 Jan. 2019, Peer-reviewed

  
• Measuring of chiral susceptibility using gradient flow

  Atsushi Baba; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa; Takanori Shimojo; Asobu Suzuki; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda

  08 Jan. 2019, Peer-reviewed

  
• Study of energy-momentum tensor correlation function in $N_f=2+1$ full QCD for QGP viscosities

  Yusuke Taniguchi; Atsushi Baba; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa; Takanori Shimojo; Asobu Suzuki; Hiroshi Suzuki; Takashi Umeda

  07 Jan. 2019, Peer-reviewed

  
• 重イオン衝突実験における1次相転移通過時のゆらぎの時間発展

  野中奏志; 北澤正清; 赤松幸尚; NAHRGANG Marlene; BLUHM Marcus; BLUHM Marcus

  日本物理学会講演概要集(CD-ROM), 2019

  
• 高温物質中におけるクォーク間相互作用の微視的伝達機構の解明

  北澤正清

  大阪大学サイバーメディアHPCジャーナル, 2019

  
• QCD相図上の臨界点探索へ向けた高次ゆらぎの時間発展の研究

  野中奏志; 北澤正清; 赤松幸尚

  原子核研究, 2019

  
• Thermodynamics in quenched QCD: energy--momentum tensor with two-loop order coefficients in the gradient flow formalism

  Takumi Iritani; Masakiyo Kitazawa; Hiroshi Suzuki; Hiromasa Takaura

  16 Dec. 2018

  
• Equation of state near the first order phase transition point of SU(3) gauge theory using gradient flow

  Mizuki Shirogane; Shinji Ejiri; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda

  10 Nov. 2018, Peer-reviewed

  
• Linear confinement and stress-energy tensor around static quark and anti-quark pair -- Lattice simulation with Yang-Mills gradient flow --

  Ryosuke Yanagihara; Takumi Iritani; Masakiyo Kitazawa; Masayuki Asakawa; Tetsuo Hatsuda

  Proceedings of The 36th Annual International Symposium on Lattice Field Theory — PoS(LATTICE2018), 24 Oct. 2018, Peer-reviewed

  
• A general procedure for detector-response correction of higher order cumulants

  Toshihiro Nonaka; Masakiyo Kitazawa; ShinIchi Esumi

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

  
• Dynamically integrated transport approach for heavy-ion collisions at high baryon density

  Yukinao Akamatsu; Masayuki Asakawa; Tetsufumi Hirano; Masakiyo Kitazawa; Kenji Morita; Koichi Murase; Yasushi Nara; Chiho Nonaka; Akira Ohnishi

  PHYSICAL REVIEW C, 23 May 2018, Peer-reviewed

  
• Gradient flowによる(2+1)‐flavor QCD状態方程式―物理点での試験研究―

  金谷和至; 石見涼; 梅田貴士; 江尻信司; 北沢正清; 鈴木博; 谷口裕介

  日本物理学会講演概要集(CD-ROM), 23 Mar. 2018

  
• Correlations of the energy-momentum tensor via gradient flow in SU(3) Yang-Mills theory at finite temperature

  Masakiyo Kitazawa; Takumi Iritani; Masayuki Asakawa; Tetsuo Hatsuda

  PHYSICAL REVIEW D, Dec. 2017, Peer-reviewed

  
• Energy-momentum tensor correlation function in Nf=2+1 full QCD at finite temperature

  Yusuke Taniguchi; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa; Asobu Suzuki; Hiroshi Suzuki; Takashi Umeda

  07 Nov. 2017, Peer-reviewed

  
• Equation of state in (2+1)-flavor QCD at physical point with improved Wilson fermion action using gradient flow

  WHOT-QCD Collaboration; :; Kazuyuki Kanaya; Shinji Ejiri; Ryo Iwami; Masakiyo Kitazawa; Hiroshi Suzuki; Yusuke Taniguchi; Takash Umeda

  27 Oct. 2017, Peer-reviewed

  
• Gradient flowを用いてみる一次相転移点近傍の熱力学量の性質

  白銀瑞樹; 江尻信司; 石見涼; 金谷和至; 北沢正清; 谷口裕介; 鈴木博; 梅田貴士; 若林直輝

  日本物理学会講演概要集(CD-ROM), 25 Sep. 2017

  
• Properties and uses of factorial cumulants in relativistic heavy-ion collisions

  Masakiyo Kitazawa; Xiaofeng Luo

  PHYSICAL REVIEW C, Aug. 2017, Peer-reviewed

  
• Dynamical evolution of critical fluctuations and its observation in heavy ion collisions

  Miki Sakaida; Masayuki Asakawa; Hirotsugu Fujii; Masakiyo Kitazawa

  PHYSICAL REVIEW C, Jun. 2017, Peer-reviewed

  
• More efficient formulas for efficiency correction of cumulants and effect of using averaged efficiency

  Toshihiro Nonaka; Masakiyo Kitazawa; ShinIchi Esumi

  PHYSICAL REVIEW C, Jun. 2017, Peer-reviewed

  
• Photon production spectrum above $T_c$ with a lattice quark propagator

  Taekwang Kim; Masayuki Asakawa; Masakiyo Kitazawa

  02 May 2017, Peer-reviewed

  
• Determination of latent heat at the finite temperature phase transition of SU(3) gauge theory

  Shinji Ejiri; Ryo Iwami; Mizuki Shirogane; Naoki Wakabayashi; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda

  30 Jan. 2017, Peer-reviewed

  
• In-medium dispersion relations of charmonia studied by the maximum entropy method

  Atsuro Ikeda; Masayuki Asakawa; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Jan. 2017, Peer-reviewed

  
• Temperature dependence of topological susceptibility using gradient flow

  Yusuke Taniguchi; Shinji Ejiri; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Takashi Umeda; Ryo Iwami; Naoki Wakabayashi

  08 Nov. 2016, Peer-reviewed

  
• Equation of state in (2+1)-flavor QCD with gradient flow

  Kazuyuki Kanaya; Shinji Ejiri; Ryo Iwami; Masakiyo Kitazawa; Hiroshi Suzuki; Yusuke Taniguchi; Takashi Umeda; Naoki Wakabayashi

  29 Oct. 2016, Peer-reviewed

  
• Equation of State for SU(3) Gauge Theory via the Energy-Momentum Tensor under Gradient Flow

  Masakiyo Kitazawa; Takumi Iritani; Masayuki Asakawa; Tetsuo Hatsuda; Hiroshi Suzuki

  Phys. Rev. D 94, 114512 (2016), 25 Oct. 2016, Peer-reviewed

  
• Non-perturbative production rate of photons with a lattice quark propagator: effect of vertex correction

  Taekwang Kim; Masayuki Asakawa; Masakiyo Kitazawa

  Acta Physica Polonica B, Proceedings Supplement, 24 Oct. 2016, Peer-reviewed

  
• Understanding experimentally-observed fluctuations

  Masakiyo Kitazawa; Masayuki Asakawa

  Acta Physica Polonica B, Proceedings Supplement, 20 Oct. 2016, Peer-reviewed

  
• Thermal blurring of event-by-event fluctuations generated by rapidity conversion

  Yutaro Ohnishi; Masakiyo Kitazawa; Masayuki Asakawa

  PHYSICAL REVIEW C, Oct. 2016, Peer-reviewed

  
• Exploring Nf=2+1 QCD thermodynamics from the gradient flow

  Yusuke Taniguchi; Shinji Ejiri; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa; Hiroshi Suzuki; Takashi Umeda; Naoki Wakabayashi

  Phys. Rev. D 96, 014509 (2017), 06 Sep. 2016, Peer-reviewed

  
• Fluctuations of conserved charges in relativistic heavy ion collisions: An introduction

  Masayuki Asakawa; Masakiyo Kitazawa

  PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, Sep. 2016, Peer-reviewed

  
• Latent heat at the first order phase transition point of SU(3) gauge theory

  Mizuki Shirogane; Shinji Ejiri; Ryo Iwami; Kazuyuki Kanaya; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Jul. 2016, Peer-reviewed

  
• Efficient formulas for efficiency correction of cumulants

  Masakiyo Kitazawa

  PHYSICAL REVIEW C, Apr. 2016, Peer-reviewed

  
• J-PARC重イオン衝突実験でねらう物理

  佐甲博之; 坂口貴男; 中條達也; 北沢正清; 原田寛之; 今井憲一

  日本物理学会講演概要集(CD-ROM), 2016

  
• Dilepton production spectrum above T-c with a lattice quark propagator

  Taekwang Kim; Masayuki Asakawa; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Dec. 2015, Peer-reviewed

  
• Thermodynamics and reference scale of SU(3) gauge theory from gradient flow on fine lattices

  Masakiyo Kitazawa; Masayuki Asakawa; Tetsuo Hatsuda; Takumi Iritani; Etsuko Itou; Hiroshi Suzuki

  17 Nov. 2015, Peer-reviewed

  
• Rapidity window dependences of higher order cumulants and diffusion master equation

  Masakiyo Kitazawa

  NUCLEAR PHYSICS A, Oct. 2015, Peer-reviewed

  
• Determination of Reference Scales for Wilson Gauge Action from Yang--Mills Gradient Flow

  Masayuki Asakawa; Takumi Iritani; Masakiyo Kitazawa; Hiroshi Suzuki

  23 Mar. 2015, Peer-reviewed

  
• Higher order fluctuations of conserved charges in heavy ion collisions

  Miki Sakaida; Masayuki Asakawa; Masakiyo Kitazawa

  HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS, 2015, Peer-reviewed

  
• Measurement of thermodynamics using gradient flow

  Masakiyo Kitazawa; Masayuki Asakawa; Tetsuo Hatsuda; Takumi Iritani; Etsuko Itou; Hiroshi Suzuki

  15 Dec. 2014, Peer-reviewed

  
• Effects of global charge conservation on time evolution of cumulants of conserved charges in relativistic heavy ion collisions

  Miki Sakaida; Masayuki Asakawa; Masakiyo Kitazawa

  PHYSICAL REVIEW C, Dec. 2014, Peer-reviewed

  
• Emergence of soft quark excitations by the coupling with a soft mode of the QCD critical point

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  PHYSICAL REVIEW D, Dec. 2014

  
• 28aTB-3 Quark spectrum around the chiral transition

  Nemoto Yukio; Kitazawa Masakiyo; Kunihiro Teiji

  Meeting abstracts of the Physical Society of Japan, 05 Mar. 2014

  
• 27aTB-11 Charm quark transport property in the deconfined phase in quenched lattice QCD

  Ikeda Atsuro; Asakawa Masayuki; Kitazawa Masakiyo

  Meeting abstracts of the Physical Society of Japan, 05 Mar. 2014

  
• 27aTB-12 Calculating Dilepton Production Rate Constructed from Quark Propagator with Medium. Effect

  Kim T.; Asakawa M.; Kitazawa M.

  Meeting abstracts of the Physical Society of Japan, 05 Mar. 2014

  
• 30pTR-1 Finite volume effects on higher order cumulants of conserved charges in heavy ion collisions

  Sakaida Miki; Asakawa Masayuki; Kitazawa Masakiyo

  Meeting abstracts of the Physical Society of Japan, 05 Mar. 2014

  
• Possible generation of anomalously soft quark excitations at nonzero temperature: Nonhyperbolic dispersion of the parapion and van Hove singularity

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  PHYSICAL REVIEW D, Mar. 2014, Peer-reviewed

  
• Non-equilibrium time evolution of higher order cumulants of conserved charges and event-by-event analysis

  Masakiyo Kitazawa; Masayuki Asakawa; Hirosato Ono

  PHYSICS LETTERS B, Jan. 2014, Peer-reviewed

  
• Thermodynamics of SU(3) Gauge Theory from Gradient Flow

  Masayuki Asakawa; Tetsuo Hatsuda; Etsuko Itou; Masakiyo Kitazawa; Hiroshi Suzuki

  Phys. Rev. D 90, 011501 (2014), 29 Dec. 2013, Peer-reviewed

  
• Time evolution of higher order cumulants of conserved charges in heavy ion collisions

  Sakaida Miki; Asakawa Masayuki; Kitazawa Masakiyo

  Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013

  
• Effect of secondary protons on baryon and proton number cumulants in event-by-event analysis

  Hirosato Ono; Masayuki Asakawa; Masakiyo Kitazawa

  PHYSICAL REVIEW C, Apr. 2013, Peer-reviewed

  
• 29pHA-1 Charmonium spectral functions at finite momenta and finite temperature in the gluon plasma from lattice QCD

  Ogura Takayuki; Asakawa Masayuki; Kitazawa Masakiyo; Nonaka Chiho

  Meeting abstracts of the Physical Society of Japan, 26 Mar. 2013

  
• 29aHA-15 Time evolution of higher-order fluctuations of conserved charges in heavy ion collisions

  Kitazawa Masakiyo; Asakawa Masayuki; Ono Hirosato

  Meeting abstracts of the Physical Society of Japan, 26 Mar. 2013

  
• 12aSL-7 Revealing QCD phase structure in relativistic heavy ion collisions

  Kitazawa Masakiyo

  Meeting abstracts of the Physical Society of Japan, 24 Aug. 2012

  
• 12pSL-6 Effect of secondary protons on the measurement of baryon number fluctuations at RHIC

  Ono Hirosato; Asakawa Masayuki; Kitazawa Masakiyo

  Meeting abstracts of the Physical Society of Japan, 24 Aug. 2012

  
• Thermal mass and dispersion relations of quarks in the deconfined phase of quenched QCD

  Olaf Kaczmarek; Frithjof Karsch; Masakiyo Kitazawa; Wolfgang Soeldner

  PHYSICAL REVIEW D, Aug. 2012, Peer-reviewed

  
• Relation between baryon number fluctuations and experimentally observed proton number fluctuations in relativistic heavy ion collisions

  Masakiyo Kitazawa; Masayuki Asakawa

  PHYSICAL REVIEW C, Aug. 2012, Peer-reviewed

  
• 24pXA-12 Baryon number fluctuations in energy scan program

  Kitazawa Masakiyo; Asakawa Masayuki

  Meeting abstracts of the Physical Society of Japan, 05 Mar. 2012

  
• Revealing baryon number fluctuations from proton number fluctuations in relativistic heavy ion collisions

  Masakiyo Kitazawa; Masayuki Asakawa

  PHYSICAL REVIEW C, Feb. 2012, Peer-reviewed

  
• Shear viscosity to relaxation time ratio in SU(3) lattice gauge theory

  Yasuhiro Kohno; Masayuki Asakawa; Masakiyo Kitazawa

  07 Dec. 2011, Peer-reviewed

  
• 26pGM-10 Fluctuations of energy-momentum tensor on the lattice

  Kohno Yasuhiro; Asakawa Masayuki; Kitazawa Masakiyo; Nonaka Chiho

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2011

  
• 25pGH-5 A study of (2+1) dimensional high-resolution scheme toward numerical analysis of heavy-ion collisions with hydordynamis (I)

  Takakura K.; Isse M.; Asakawa M.; Biotti L.; Kitazawa M.; Kohno Y.; Takabe H.

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2011

  
• Spectral properties of quarks above Tc -- thermal mass, dispersion relation, and self-energy --

  Masakiyo Kitazawa

  12 Nov. 2010, Peer-reviewed

  
• 12aSF-4 Evaluation of Israel-Stewart parameters in lattice QCD calculation

  Kohno Yasuhiro; Asakawa Masayuki; Kitazawa Masakiyo; Nonaka Chiho

  Meeting abstracts of the Physical Society of Japan, 18 Aug. 2010

  
• 20pBS-12 Thermal mass and dispersion relations of quarks in lattice QCD

  Kitazawa Masakiyo; Kaczmarek Olaf; Karsch Frithjof; Soeldner Wolfgang

  Meeting abstracts of the Physical Society of Japan, 01 Mar. 2010

  
• 22pBX-6 Phases of color superconductivity

  Kitazawa Masakiyo

  Meeting abstracts of the Physical Society of Japan, 01 Mar. 2010

  
• Third Moments of Conserved Charges as Probes of QCD Phase Structure

  Masayuki Asakawa; Shinji Ejiri; Masakiyo Kitazawa

  PHYSICAL REVIEW LETTERS, Dec. 2009, Peer-reviewed

  
• Evaluation of Israel-Stewart parameters in lattice gauge theory

  Yasuhiro Kohno; Masayuki Asakawa; Masakiyo Kitazawa; Chiho Nonaka

  PoS LAT2009:196,2009, 10 Nov. 2009, Peer-reviewed

  
• Third moments of conserved charges in QCD phase diagram

  Masakiyo Kitazawa; Masayuki Asakawa; Shinji Ejiri

  PoS LAT2009:174,2009, 10 Nov. 2009, Peer-reviewed

  
• Spectral Properties of Quarks at Finite Temperature in Lattice QCD

  Masakiyo Kitazawa; Frithjof Karsch

  NUCLEAR PHYSICS A, Nov. 2009, Peer-reviewed

  
• Quark propagator at finite temperature and finite momentum in quenched lattice QCD

  Frithjof Karsch; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Sep. 2009

  
• 30aZC-1 Lattice simulation of non-equilibrium steady state and measurement of shear viscosity

  Kouno Yasuhiro; Asakawa Masayuki; Kitazawa Masakiyo; Muller Berndt

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2009

  
• 20aSB-9 The effect of the quasi-particle picture of the quark coupled with a massive boson at finite temperature on the lepton pair production rate

  Mitsutani Kazuya; Kitazawa Masakiyo; Kunihiro Teiji

  Meeting abstracts of the Physical Society of Japan, 25 Aug. 2008

  
• 26pZB-5 Change of quasi-particle picture of the quark and its effect on dilepton production rate

  Mitsutani Kazuya; Kitazawa Masakiyo; Kunihiro Teiji; Nemoto Yukio

  Meeting abstracts of the Physical Society of Japan, 29 Feb. 2008

  
• 24aZC-3 Lattice study of quarks at finite temperature

  Kitazawa Masakiyo; Karsch Frithjof

  Meeting abstracts of the Physical Society of Japan, 29 Feb. 2008

  
• 26aZF-5 Pre-critical phenomena of two-flavor color superconductivity in heated quark matter

  Kitazawa Masakiyo

  Meeting abstracts of the Physical Society of Japan, 29 Feb. 2008

  
• How do diquark fluctuations and chiral soft modes affect di-lepton production in the deconfined phase?

  Teiji Kunihiro; Masakiyo Kitazawa; Yukio Nemoto

  PoSCPOD07:041,2007, 28 Nov. 2007, Peer-reviewed

  
• Spectral Properties of Quarks in the Quark-Gluon Plasma

  Frithjof Karsch; Masakiyo Kitazawa

  PoSLAT2007:197,2007, 16 Oct. 2007, Peer-reviewed

  
• 24aZC-7 Lattice study of quarks in quark-gluon plasma

  Kitazawa Masakiyo; Frithjof Karsch

  Meeting abstracts of the Physical Society of Japan, 21 Aug. 2007

  
• 21aZC-8 Quasi-Particle Picture of Massive Fermions at Finite Temperature : The Behavior of Complex Poles

  Mitsutani Kazuya; Kitazawa Masakiyo; Kunihiro Teiji; Nemoto Yukio

  Meeting abstracts of the Physical Society of Japan, 21 Aug. 2007

  
• Fluctuations of the chiral condensate and quasi-particle spectra near phase transition

  Yukio Nemoto; Masakiyo Kitazawa; Teiji Kunihiro

  19 Jun. 2007, Peer-reviewed

  
• Chiral transition and mesonic excitations for quarks with thermal masses

  Yoshimasa Hidaka; Masakiyo Kitazawa

  PHYSICAL REVIEW D, Jan. 2007, Peer-reviewed

  
• Novel Collective Excitations and the Quasi-Particle Picture of Quarks Coupled with a Massive Boson at Finite Temperature

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  Progress of Theoretical Physics, 18 Sep. 2006, Peer-reviewed

  
• 20aSE-8 Fermions' Quasi-Particle Picture At Finite Temperature In Yukawa Model : Pole Structure

  Mitsutani Kazuya; Kitazawa Masakiyo; Kunihiro Teiji; Nemoto Yukio

  Meeting abstracts of the Physical Society of Japan, 18 Aug. 2006

  
• 20aSE-7 Fermion spectrum coupled to a massive vector boson at finite temperature

  Kitazawa Masakiyo; Kunihiro Teiji; Mitsutani Kazuya; Nemoto Yukio

  Meeting abstracts of the Physical Society of Japan, 18 Aug. 2006

  
• Quasiparticle picture of quarks near chiral transition at finite temperature

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  NUCLEAR PHYSICS A, 16 Aug. 2006, Peer-reviewed

  
• Stable gapless superconductivity at strong coupling

  Masakiyo Kitazawa; Dirk H. Rischke; Igor A. Shovkovy

  PHYSICS LETTERS B, Jun. 2006, Peer-reviewed

  
• 27aWG-5 Effect of quark mass on quark spectrum near T_c of chiral transition

  Mitsutani Kazuya; Kitazawa Masakiyo; Kunihiro Teiji; Nemoto Yukio

  Meeting abstracts of the Physical Society of Japan, 04 Mar. 2006

  
• 27aWG-4 Effect of the fluctuations of the chiral condensate on the dilepton production in the QGP phase

  Nemoto Yukio; Kitazawa Masakiyo; Kunihiro Teiji

  Meeting abstracts of the Physical Society of Japan, 04 Mar. 2006

  
• Quasiparticle Picture of Quarks near Chiral Phase Transition

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  Acta Phys.Hung. A27 (2006) 343-346, 28 Oct. 2005, Peer-reviewed

  
• Quark Spectrum above but near Critical Temperature of Chiral Transition

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  PHYSICS LETTERS B, 13 Oct. 2005, Peer-reviewed

  
• Quark Spectrum near Chiral Transition Points

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  12 May 2005, Peer-reviewed

  
• Non-Fermi Liquid Behavior Induced by Resonant Diquark-pair Scattering in Heated Quark Matter

  Masakiyo Kitazawa; Teiji Kunihiro; Yukio Nemoto

  PHYSICS LETTERS B, 10 May 2005, Peer-reviewed

  
• 25aWD-6 Quark spectrum near critical temperature of color superconductivity

  Kitazawa Masakiyo; Koide Tomoi; Kunihiro Teiji; Nemoto Yukio

  Meeting abstracts of the Physical Society of Japan, 04 Mar. 2005

  
• Pre-critical Phenomena of Two-flavor Color Superconductivity in Heated Quark Matter -- diquark-pair fluctuations and non-Fermi liquid behavior --

  Masakiyo Kitazawa; Tomoi Koide; Teiji Kunihiro; Yukio Nemoto

  Progress of Theoretical Physics, 03 Feb. 2005, Peer-reviewed

  
• 28aSJ-4 Single quark spectrum above chiral phase transition at finite temperature

  Nemoto Yukio; Kitazawa Masakiyo; Kunihiro Teiji

  Meeting abstracts of the Physical Society of Japan, 25 Aug. 2004

  
• Non-equilibrium Critical Dynamics and Precursory Phenomena in Color Superconductivity

  Masakiyo Kitazawa; Tomoi Koide; Teiji Kunihiro; Yukio Nemoto

  PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 10 Mar. 2004, Peer-reviewed

  
• 28aZH-11 Precursory Phenomenon of Color Superconductivity in Specific Heat

  Kitazawa Masakiyo; Kunihiro Teiji

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2004

  
• Pseudogap of Color Superconductivity

  Masakiyo Kitazawa; Tomoi Koide; Teiji Kunihiro; Yukio Nemoto

  PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 27 Dec. 2003, Peer-reviewed

  
• Chiral and Color-superconducting Phase Transitions with Vector Interaction in a Simple Model (Addenda)

  Masakiyo Kitazawa; Tomoi Koide; Teiji Kunihiro; Yukio Nemoto

  Progress of Theoretical Physics, 22 Jul. 2003, Peer-reviewed

  
• Chiral and color-superconducting phase transitions with vector interaction in a simple model (vol 108, pg 929, 2002)

  M Kitazawa; T Koide; T Kunihiro; Y Nemoto

  PROGRESS OF THEORETICAL PHYSICS, Jul. 2003

  
• Proton total reaction cross sections on Si

  Okumura N.; Joh T.; Takahashi N.; Honkyu Y.; Kitazawa M.; Itoh K. S.; Aoki Y.

  Meeting abstracts of the Physical Society of Japan, 10 Sep. 2000

  

Books and Other Publications

• 超高温・高密度のクォーク物質 : 素粒子の世界の相転移現象

  北沢, 正清; 国広, 悌二

  共立出版, Sep. 2022

  Find Kyoto University's collection of books :

  

Awards

• 01 Mar. 2008

  2008年日本物理学会若手奨励賞（核理論新人論文賞）
• 01 Feb. 2010

  大阪大学 教育・研究功績賞
• 01 Mar. 2009

  日本物理学会 第14回論文賞

External funds: Kakenhi

• QCD相転移の実験的検証に向けたソフトモードダイナミクスの理論的研究

  Grant-in-Aid for Scientific Research (C)

  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

  Kyoto University

  國廣 悌二

  From 01 Apr. 2024, To 31 Mar. 2027, Granted

  重イオン衝突での2軽粒子生成;QCD相転移;QCD臨界点;カラー超伝導;π中間子凝縮;ソフトモード;実験観測量の提案;軽粒子対生成率の異常増大

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K07049/
• Applying machine learning to event selections in relativistic heavy-ion collisions

  Grant-in-Aid for Transformative Research Areas (A)

  Transformative Research Areas, Section (II)

  Kyoto University

  北澤 正清

  From 01 Apr. 2023, To 31 Mar. 2025, Project Closed

  高エネルギー重イオン衝突;衝突事象ゆらぎ;機械学習;超高密度物質;重イオン衝突実験;高密度核物質;事象選択;J-PARC-HI;衝突事象毎ゆらぎ;クォーク物質

  https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-23H04507/
• Mechanical structure of mesons studied by lattice QCD simulations

  Grant-in-Aid for Scientific Research (C)

  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

  Kyoto University

  北澤 正清

  From 01 Apr. 2022, To 31 Mar. 2026, Granted

  格子QCD;エネルギー運動量テンソル;グラディエントフロー;重力形状因子;重クォークQCD;中間子;機械学習;重クォーク;閉じ込め相転移

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K03619/
• Toward the determination of physical quantities in finite temperature QCD

  Grant-in-Aid for Scientific Research (B)

  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

  Kyushu University

  Hiroshi Suzuki

  From 01 Apr. 2020, To 31 Mar. 2023, Project Closed

  格子ゲージ理論;量子色力学;グラディエント・フロー;有限温度QCD;グラディエントフロー

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H01903/
• Search for a critical point and first order phase transition of high density quark-nuclear matter via higher order fluctuations and particle correlations

  Grant-in-Aid for Scientific Research (S)

  Broad Section B

  University of Tsukuba

  ShinIchi Esumi

  From 26 Jun. 2019, To 31 Mar. 2024, Project Closed

  臨界点;１次相転移;QCD相図;クォーク・グルーオン・プラズマ;高密度クォーク核物質;1次相転移;高密度クォーク・核物質;相転移;重イオン衝突;高エネルギー重イオン衝突;衝突ビームエネルギー走査;QCD相転移;クォーク・ハドロン;QCD臨界点;ビームエネルギー走査;QCD相構造;クォーク・ハドロン・QCD相図

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19H05598/
• Analysis of quantities in hydrodynamic equations on the lattice

  Grant-in-Aid for Scientific Research (C)

  Osaka University

  Masakiyo Kitazawa

  From 01 Apr. 2017, To 31 Mar. 2021, Project Closed

  格子ゲージ理論;エネルギー運動量テンソル;応力;クォーク・グルーオン・プラズマ;状態方程式;高エネルギー重イオン衝突実験;相対論的流体方程式;格子QCD;相関関数;相対論的重イオン衝突実験;応力テンソル;格子ＱＣＤ;流体方程式;重イオン衝突実験;有限温度QCD

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17K05442/
• Time evolution of non-Gaussian fluctuations in heavy ion collisions

  Grant-in-Aid for Young Scientists (B)

  Osaka University

  Masakiyo Kitazawa

  From 01 Apr. 2013, To 31 Mar. 2016, Project Closed

  非ガウスゆらぎ;重イオン衝突実験;QCD臨界点;ビームエネルギー走査実験;キュムラント;保存電荷ゆらぎ;高次キュムラント;バリオン数;クォークグルオンプラズマ;ゆらぎ;拡散マスター方程式

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25800148/
• Condensed matter physics of QCD at nonzero temperature

  Grant-in-Aid for Young Scientists (B)

  Osaka University

  Masakiyo KITAZAWA

  From 01 Apr. 2009, To 31 Mar. 2012, Project Closed

  クォーク;QGP;格子QCD;量子色力学;相対論的重イオン衝突;ゆらぎ;QCD相図;輸送係数;久保公式;場の理論;格子ゲージ理論;準粒子;相対論的重イオン衝突実験;熱質量;緩和時間;格子CD;クォーク・グルオン・プラズマ;スペクトル関数

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21740182/
• Quasi-particle picture of quarks in quark-gluon plasma

  Grant-in-Aid for Young Scientists (Start-up)

  Osaka University

  Masakiy KITAZAWA

  From 01 Apr. 2007, To 31 Mar. 2009, Project Closed

  クォーク;QGP;格子ゲージ理論;準粒子;相転移;クォーク・グルオン・プラズマ;有限温度場の理論;相対論的原子核衝突;スペクトル関数;質量の起源;量子色力学;格子QCD;湯川模型;有限温度;熱質量;第一原理計算

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19840030/

Education

Teaching subject(s)

• From 01 Apr. 2026, To 31 Mar. 2027

  Fundamentals of Theoretical Nuclear Physics B

  3009, Fall, Graduate School of Science, 2
• From 01 Apr. 2026, To 31 Mar. 2027

  Fundamentals of Theoretical Nuclear Physics A

  3008, Spring, Graduate School of Science, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Fundamentals of Theoretical Nuclear Physics A

  3008, Spring, Graduate School of Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Fundamentals of Theoretical Nuclear Physics B

  3009, Fall, Graduate School of Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Fundamentals of Theoretical Nuclear Physics A

  3008, Spring, Graduate School of Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Fundamentals of Theoretical Nuclear Physics B

  3009, Fall, Graduate School of Science, 2

Participation in PhD Defense

• Transport-Model Analysis of the φ-Meson Spectrum Produced in 12 GeV pA Reactions

  ICHIKAWA MASAYA, Graduate School of Science, Sub-chief Examiner

  25 Nov. 2025

Administration

Faculty management (title, position)

• From 01 Aug. 2025, To 31 Jul. 2027

  共同利用運営委員会
• From 19 Jun. 2023

  計算機委員会　委員
• From 19 Jun. 2023, To 31 Mar. 2024

  若手研究者選考会議　委員
• From 01 May 2023, To 31 Mar. 2025

  創立70周年記念行事実行委員会　委員
• From 01 Aug. 2023, To 31 Jul. 2025

  共同利用運営委員会　委員