Basic Information

Faculty

• Faculty of Science

Email Address

• Email Address

  togashi.hajime.4rkyoto-u.ac.jp

Professional Memberships

• THE PHYSICAL SOCIETY OF JAPAN

Academic Degree

• 15 Mar. 2010

  早稲田大学修士（理学）
• 25 Feb. 2014

  早稲田大学博士（理学）

Academic Resume (Graduate Schools)

• 早稲田大学, 大学院先進理工学研究科博士後期課程物理学及応用物理学専攻, 修了
• 早稲田大学, 大学院先進理工学研究科修士課程物理学及応用物理学専攻, 修了

Academic Resume (Undergraduate School/Majors)

• 早稲田大学, 理工学部物理学科, 卒業

Research History

• From May 2025, To Present

  Kyoto University, Graduate School of Science, 助教
• From Mar. 2024, To Apr. 2025

  Osaka University, Research Center for Nuclear Physics Theoretical Nuclear Physics, 特任助教（常勤）
• From Apr. 2023, To Feb. 2024

  Daegu Unviersity, 専任研究員
• From Jan. 2021, To Mar. 2023

  Tohoku University, Graduate School of Science Department of Physics, 助教
• From Feb. 2019, To Dec. 2020

  Kyushu University, Faculty of Sciences Department of Physics, 学術研究員, 特任助教
• From Apr. 2016, To Jan. 2019

  RIKEN, RIKEN Nishina Center for Accelerator-Based Science, RIKEN special postdoctoral researcher
• From Apr. 2014, To Mar. 2016

  RIKEN, RIKEN Nishina Center for Accelerator-Based Science, Special postdoctoral researcher
• From Apr. 2012, To Mar. 2014

  Waseda University, Graduate School of Advanced Science and Engineering, JSPS Research Fellowship for Young Scientists

ID,URL

• J-Global ID

  201901003431586767

• Researcher number

  70733939

researchmap URL

• https://researchmap.jp/hajime_togashi

Research

Research Areas

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

Papers

• Role of Symmetry Energy at Subnuclear Densities in Protoneutron Star Crusts

  Ken’ichiro Nakazato; Hajime Togashi; Kohsuke Sumiyoshi; Hideyuki Suzuki

  Progress of Theoretical and Experimental Physics, 19 Nov. 2025

  
• Effects of nuclear matter and composition in core-collapse supernovae and long-term proto-neutron star cooling

  Kohsuke Sumiyoshi; Shun Furusawa; Hiroki Nagakura; Akira Harada; Hajime Togashi; Ken’ichiro Nakazato; Hideyuki Suzuki

  Progress of Theoretical and Experimental Physics, 12 Dec. 2022, Peer-reviewed

  
• Merger and Postmerger of Binary Neutron Stars with a Quark-Hadron Crossover Equation of State

  Yong-Jia Huang; Luca Baiotti; Toru Kojo; Kentaro Takami; Hajime Sotani; Hajime Togashi; Tetsuo Hatsuda; Shigehiro Nagataki; Yi-Zhong Fan

  Physical Review Letters, 26 Oct. 2022, Peer-reviewed

  
• Effects of finite sizes of atomic nuclei on shear modulus and torsional oscillations in neutron stars

  Hajime Sotani; Hajime Togashi; Masatoshi Takano

  Monthly Notices of the Royal Astronomical Society, 28 Sep. 2022, Peer-reviewed

  
• Neutron star mass formula with nuclear saturation parameters

  Hajime Sotani; Hajime Togashi

  Physical Review D, 14 Mar. 2022, Peer-reviewed

  
• Universal relation for supernova gravitational waves

  Hajime Sotani; Tomoya Takiwaki; Hajime Togashi

  Physical Review D, 02 Dec. 2021, Peer-reviewed

  
• Phenomenological QCD equations of state for neutron star dynamics: Nuclear-2SC continuity and evolving effective couplings

  Toru Kojo; Defu Hou; Jude Okafor; Hajime Togashi

  Physical Review D, 20 Sep. 2021, Peer-reviewed

  
• Numerical study of stellar core collapse and neutrino emission using the nuclear equation of state obtained by the variational method

  Ken’ichiro Nakazato; Kohsuke Sumiyoshi; Hajime Togashi

  Publications of the Astronomical Society of Japan, 03 May 2021, Peer-reviewed

  
• Systematic study on the quark-hadron mixed phase in compact stars

  Cheng-Jun Xia; Toshiki Maruyama; Nobutoshi Yasutake; Toshitaka Tatsumi; Hong Shen; Hajime Togashi

  Physical Review D, 24 Jul. 2020, Peer-reviewed

  
• Nuclear Equation of State Based on the Many-Body Calculation with Realistic Nuclear Forces

  Hajime Togashi

  JPS Conference Proceedings, 27 Mar. 2020, Peer-reviewed, Lead author, Corresponding author

  
• Nuclear statistical equilibrium equation of state with a parametrized Dirac–Brückner Hartree–Fock calculation

  Shun Furusawa; Hajime Togashi; Kohsuke Sumiyoshi; Koichi Saito; Shoichi Yamada; Hideyuki Suzuki

  Progress of Theoretical and Experimental Physics, 30 Jan. 2020, Peer-reviewed

  
• Cluster Variational Method for Hyperonic Nuclear Matter with Coupled Channels

  Hajime Togashi; Masatoshi Takano

  JPS Conference Proceedings, 08 Nov. 2019, Peer-reviewed, Lead author, Corresponding author

  
• New Neutron Star Equation of State with Quark–Hadron Crossover

  Gordon Baym; Shun Furusawa; Tetsuo Hatsuda; Toru Kojo; Hajime Togashi

  The Astrophysical Journal, 29 Oct. 2019, Peer-reviewed

  
• Radiation-Hydrodynamic Simulations of Core-collapse Supernovae with 6 Dimensional Boltzmann Neutrino Transport

  Hiroki Nagakura; Shun Furusawa; Hajime Togashi; Kohsuke Sumiyoshi; Shoichi Yamada

  Journal of Physics: Conference Series, 05 Jun. 2019, Peer-reviewed

  
• Comparing Treatments of Weak Reactions with Nuclei in Simulations of Core-collapse Supernovae

  Hiroki Nagakura; Shun Furusawa; Hajime Togashi; Sherwood Richers; Kohsuke Sumiyoshi; Shoichi Yamada

  The Astrophysical Journal Supplement Series, 13 Feb. 2019, Peer-reviewed

  
• Heavy nuclei as thermal insulation for protoneutron stars

  Ken'ichiro Nakazato; Hideyuki Suzuki; Hajime Togashi

  Physical Review C, 21 Mar. 2018, Peer-reviewed

  
• New Table of Supernova Equation of State Using a Variational Method and Its Application to Astrophysical Compact Objects

  Hajime Togashi; Ken’ichiro Nakazato; Yuta Takehara; Sachiko Yamamuro; Hideyuki Suzuki; Masatoshi Takano

  JPS Conference Proceedings, 24 Jan. 2018, Peer-reviewed, Lead author, Corresponding author

  
• Neutron-star radii based on realistic nuclear interactions

  Y. Yamamoto; H. Togashi; T. Tamagawa; T. Furumoto; N. Yasutake; Th. A. Rijken

  Physical Review C, 18 Dec. 2017, Peer-reviewed

  
• Equation of State of Hyperonic Nuclear Matter at Zero and Finite Temperatures with the Variational Method

  Hajime Togashi; Emiko Hiyama; Masatoshi Takano

  JPS Conference Proceedings, 24 Nov. 2017, Peer-reviewed, Lead author, Corresponding author

  
• A new equation of state for core-collapse supernovae based on realistic nuclear forces and including a full nuclear ensemble

  S Furusawa; H Togashi; H Nagakura; K Sumiyoshi; S Yamada; H Suzuki; M Takano

  Journal of Physics G: Nuclear and Particle Physics, 25 Jul. 2017, Peer-reviewed, Invited

  
• Variational Approach to Neutron Star Matter with Hyperons

  Hajime Togashi; Emiko Hiyama; Yasuo Yamamoto; Masatoshi Takano

  JPS Conference Proceedings, 19 Jul. 2017, Peer-reviewed, Lead author, Corresponding author

  
• Nuclear equation of state for core-collapse supernova simulations with realistic nuclear forces

  H. Togashi; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; M. Takano

  Nuclear Physics A, May 2017, Peer-reviewed, Lead author, Corresponding author

  
• Variational Study of the Supernova Equation of State with Hyperons

  Hajime Togashi; Emiko Hiyama; Masatoshi Takano

  JPS Conference Proceedings, 28 Feb. 2017, Peer-reviewed, Lead author, Corresponding author

  
• Equation of state for neutron stars with hyperons using a variational method

  H. Togashi; E. Hiyama; Y. Yamamoto; M. Takano

  Physical Review C, 31 Mar. 2016, Peer-reviewed, Lead author, Corresponding author

  
• NUCLEAR EQUATION OF STATE FOR CORE-COLLAPSE SUPERNOVAE WITH REALISTIC NUCLEAR FORCES

  H Togashi; Y Takehara; S Yamamuro; K Nakazato; H Suzuki; K Sumiyoshi; M Takano

  Proceedings of XIII Nuclei in the Cosmos — PoS(NIC XIII), 09 Oct. 2015, Peer-reviewed, Lead author, Corresponding author

  
• Equation of state for nuclear matter in core-collapse supernovae by the variational method

  H Togashi; Y Takehara; S Yamamuro; K Nakazato; H Suzuki; K Sumiyoshi; M Takano

  Journal of Physics: Conference Series, 08 Dec. 2014, Peer-reviewed, Lead author, Corresponding author

  
• Nuclear equation of state with the variational method and its application to supernova simulations

  Hajime Togashi; Masatoshi Takano; Kohsuke Sumiyoshi; Ken'ichiro Nakazato

  International Journal of Modern Physics: Conference Series, 16 Apr. 2014, Peer-reviewed, Lead author, Corresponding author

  
• New Nuclear Equation of State for Core-Collapse Supernovae with the Variational Method

  H. Togashi; S. Yamamuro; K. Nakazato; M. Takano; H. Suzuki; K. Sumiyoshi

  EPJ Web of Conferences, 20 Mar. 2014, Peer-reviewed, Lead author, Corresponding author

  
• Application of the nuclear equation of state obtained by the variational method to core-collapse supernovae

  H. Togashi; M. Takano; K. Sumiyoshi; K. Nakazato

  Progress of Theoretical and Experimental Physics, 21 Feb. 2014, Peer-reviewed, Lead author, Corresponding author

  
• Variational Method for Nuclear Matter with an Explicit Energy Functional

  Masatoshi Takano; Hajime Togashi; Sachiko Yamamuro; Ken’ichiro Nakazato; Hideyuki Suzuki

  Proceedings of XII International Symposium on Nuclei in the Cosmos — PoS(NIC XII), 24 Apr. 2013, Peer-reviewed

  
• Variational study for the equation of state of asymmetric nuclear matter at finite temperatures

  H. Togashi; M. Takano

  Nuclear Physics A, 15 Mar. 2013, Peer-reviewed, Lead author, Corresponding author

  
• Cluster variational method for nuclear matter with the three-body force

  M. Takano; H. Togashi; S. Yamamuro; K. Nakazato; H. Suzuki

  AIP Conference Proceedings, 13 Nov. 2012, Peer-reviewed

  
• The Equation of State of Asymmetric Nuclear Matter at Zero and Finite Temperatures with the Variational Method

  Hajime Togashi; Hiroaki Kanzawa; Masatoshi Takano

  Proceedings of 11th Symposium on Nuclei in the Cosmos — PoS(NIC XI), 06 Jul. 2011, Peer-reviewed, Lead author, Corresponding author

  
• Variational Approach to Nuclear Matter

  Masatoshi Takano; Hajime Togashi; Hiroaki Kanzawa

  Progress of Theoretical Physics Supplement, 01 Oct. 2010, Peer-reviewed

  
• Variational Calculation for the Equation of State of Hot Asymmetric Nuclear Matter

  Hajime Togashi; Hiroaki Kanzawa; Masatoshi Takano

  AIP Conference Proceedings, 16 Aug. 2010, Peer-reviewed, Lead author, Corresponding author

  
• Variational approach to nuclear matter

  Masatoshi Takano; Hajime Togashi; Hiroaki Kanzawa

  Progress of Theoretical Physics, 2010

  

Misc.

• 3体力を考慮した絶対零度及び有限温度ハイペロン物質の状態方程式

  富樫甫

  素粒子論研究・電子版, Dec. 2019, Lead author, Corresponding author

  
• Supernova equation of state based on realistic nuclear forces

  H. Togashi; K Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; M. Takano

  RIKEN Accelerator Progress Report, Oct. 2018, Peer-reviewed, Lead author, Corresponding author

  
• 現実的核力に基づく超新星物質状態方程式の構築

  富樫甫

  原子核研究, Mar. 2018, Peer-reviewed, Lead author, Corresponding author

  
• Variational study of the equation of state for neutron star matter with hyperons

  H. Togashi; E. Hiyama; Y. Yamamoto; M. Takano

  RIKEN Accelerator Progress Report, Mar. 2017, Peer-reviewed, Lead author, Corresponding author

  
• 29pTA-3 Hot Nuclear Equation of State with the Cluster Variational Method and Its Application to Core-Collapse Supernovae with the Neutrino Transfer

  Togashi H.; Takehara Y.; Yamamuro S.; Nakazato K.; Takano M.; Suzuki H.; Sumiyoshi K.

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

  
• 26pHC-14 Nuclear Equation of State for Supernova Simulations with the Cluster Variational Method

  Togashi H.; Yamamuro S.; Nakazato K.; Takano M.; Suzuki H.; Sumiyoshi K.

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

  
• 13aSD-3 Thomas Fermi Calculation of the Representative Nuclei in Finite Temperature Supernova Matter

  Yamamuro S.; Togashi H.; Nakazato K.; Suzuki H.; Takano M.

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

  
• 24aXD-1 Nuclear Equation of State with the Cluster Variational Method and Its Application to Proto-Neutron Stars

  Togashi H.; Yamamuro S.; Nakazato K.; Kanzawa H.; Takano M.; Suzuki H.

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

  
• 24aXD-2 Optimizing Non -uniform Nucleon Distribution for Nuclear Equation of States of the Supernova Matter

  Yamamuro S.; Togashi H.; Nakazato K.; Suzuki H.; Takano M.

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

  
• クラスター変分法による高エネルギー天体現象のための核物質状態方程式の作成(バリオン物質と中性子星,研究会報告)

  富樫甫; 鷹野正利; 神沢弘明

  素粒子論研究, Aug. 2011, Lead author, Corresponding author

  
• 21aBD-7 Analysis of the Equation of State for Hot Asymmetric Nuclear Matter with the Cluster Variational Method

  Togashi H.; Kanzawa H.; Takano M.

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

  

Presentations

• Equation of state for spin-polarized asymmetric nuclear matter with the cluster variational method

  H. Togashi; M. Takano

  6th Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and the Physical Society of Japan, 29 Nov. 2023

  
• Variational equation of state for spin-polarized nuclear matter

  H. Togashi; M. Takano

  Quarks and Compact Stars 2023 (QCS2023), 23 Sep. 2023, Invited

  
• Supernova equation of state and neutrino-nucleon reaction rates based on bare nuclear forces

  H. Togashi

  17th International Symposium on Nuclei in the Cosmos (NIC XVII), 21 Sep. 2023

  
• Probing the nuclear equation of state in core-collapse simulations of massive stars

  H. Togashi

  14th APCTP-BLTP JINR Joint Workshop, 14 Jul. 2023, Invited

  
• General purpose equation of state and its applications to astrophysical compact objects

  H. Togashi

  Daegu Nuclear Astrophysics Workshop on Nuclear structure, reaction, and astrophysics, 26 May 2023, Invited

  
• Dense matter equation of state with bare baryon forces

  H. Togashi

  2nd International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (2nd J-PARC HEF-ex WS), 17 Feb. 2022, Invited

  
• Hyperon mixing in astrophysical compact objects

  富樫甫; 鷹野正利

  Workshop PPPY-\Lambda2021, 10 Dec. 2021, Invited

  
• 新物理探査に向けた中性子星状態方程式の現状と課題

  富樫甫

  素粒子現象論研究会2021, 08 Nov. 2021, Invited

  
• 変分法による絶対零度及び有限温度ハイペロン物質の研究

  富樫甫; 鷹野正利

  ストレンジネス核物理の将来を考える会, 23 Sep. 2021, Invited

  
• 低密度領域におけるアルファ粒子混合を考慮した有限温度ハイペロン物質状態方程式

  富樫甫; 鷹野正利

  日本物理学会2021年秋季大会, 17 Sep. 2021

  
• Effects of symmetry energy on inhomogeneous nuclear matter in core-collapse supernovae

  H. Togashi

  Pioneer Symposium for Nuclear Experiment in 2021 Spring Meeting of the Korean Physical Society, 22 Apr. 2021, Invited

  
• 拡張したMayer条件を考慮したクラスター変分法によるハイペロン物質状態方程式

  富樫甫; 鷹野正利

  日本物理学会第76回年次大会, 15 Mar. 2021

  
• 微視的多体理論に基づく状態方程式を用いた重力崩壊型超新星爆発シミュレーション

  富樫甫

  第３回理研−九大ワークショップ「数理で紡ぐミクロとマクロ：素粒子・原子核・宇宙」, 22 Dec. 2020

  
• Microscopic equation of state for hyperon matter with $\Lambda$N-$\Sigma$N coupling

  H. Togashi

  Workshop on Electro- and Photoproduction of Hypernuclei and Related Topics, 17 Dec. 2020

  
• 結合チャンネル相互作用のテンソル力成分を考慮したクラスター変分法による中性子星物質状態方程式

  富樫甫; 鷹野正利

  日本物理学会2020年秋季大会, 14 Sep. 2020

  
• 結合チャンネル効果を考慮したクラスター変分法によるハイペロン物質状態方程式の研究

  富樫甫; 鷹野正利

  日本物理学会第75回年次大会, 18 Mar. 2020

  
• A systematic study of supernova equations of state with the Thomas-Fermi method

  H. Togashi

  3rd Annual Symposium on “Gravitational Wave Physics and Astronomy: Genesis”, 10 Feb. 2020

  
• Symmetry energy effects on nuclear clusters in supernova matter

  H. Togashi

  Japan-France Joint Workshop on "Clusters in quantum systems: from atoms to nuclei and hadrons", 29 Jan. 2020, Invited

  
• Variational study for hyperon mixing in hot and dense matter

  H. Togashi

  Mini-Workshop on Baryon Interactions and Neutron Stars, 14 Jan. 2020, Invited

  
• 高密度物質の状態方程式と高エネルギー天体現象

  富樫甫

  理研−九大ワークショップ「数理が紡ぐ素粒子・原子核・宇宙」, 24 Dec. 2019

  
• 高密度物質の状態方程式とコンパクト天体への応用

  富樫甫

  2019年度四国地区理論物理学セミナー, 07 Dec. 2019

  
• Hyperon mixing in hot and dense matter with the variational method

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; K. Sumiyoshi; E. Hiyama

  Theia-Strong 2020 Workshop 2019, 27 Nov. 2019

  
• General purpose equation of state for astrophysical simulations with bare nuclear forces

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; K. Sumiyoshi; E. Hiyama

  International Workshop on Nuclear Physics for Astrophysical Phenomena, 25 Oct. 2019, Invited

  
• Effects of nuclear saturation properties on the equation of state for hot nuclear matter in core-collapse supernovae

  H. Togashi

  International Workshop on Multi-dimensional Modeling and Multi-Messenger observation from Core-Collapse Supernovae (4MCOCOS), 21 Oct. 2019

  
• Effects of the symmetry energy on supernova equations of state at sub-nuclear densities

  H. Togashi

  9th International Symposium on Nuclear Symmetry Energy (NuSYM2019), 01 Oct. 2019, Invited

  
• ハイペロン物質における結合チャンネル効果を考慮したクラスター変分法の研究

  富樫甫; 鷹野正利

  日本物理学会2019年秋季大会, 19 Sep. 2019

  
• Nuclear equation of state based on the many-body calculation with realistic nuclear forces

  H. Togashi

  15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15), 04 Jul. 2019, Invited

  
• ３体力を考慮した絶対零度及び有限温度ハイペロン物質の状態方程式

  富樫甫; 鷹野正利; 肥山詠美子

  高塚さんを偲ぶ会 – 高密度ハドロン・クォーク物質の諸相と中性子星の構造・進化 –, 25 May 2019

  
• Microscopic equation of state for astrophysical simulations

  H. Togashi

  8th Huada school on QCD, 06 May 2019

  
• Microscopic equation of state for nuclear matter with the variational many-body theory

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki

  MOST/RIKEN Workshop on ab initio theory in nuclear physics, 06 Apr. 2019

  
• Effects of nuclear saturation properties on the supernova equations of state at sub-nuclear densities

  H. Togashi

  2nd Annual Symposium on “Gravitational Wave Physics and Astronomy: Genesis”, 26 Nov. 2018

  
• 核物質状態方程式と高密度天体現象

  富樫甫

  理研−九大ワークショップ – 素粒子・原子核から宇宙へ –, 22 Nov. 2018, Invited

  
• Cluster variational method for hyperonic nuclear matter with coupled channels

  H. Togashi; M. Takano

  8th International Conference on Quarks and Nuclear Physics (QNP2018), 13 Nov. 2018

  
• Equation of state for hyperonic nuclear matter and its application to compact astrophysical objects

  H. Togashi

  International workshop on “Hadron structure and interaction in dense matter”, 12 Nov. 2018, Invited

  
• Systematic study of supernova equations of state at sub-nuclear densities with the Thomas-Fermi calculation

  H. Togashi

  5th Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and the Physical Society of Japan, 27 Oct. 2018

  
• Systematic study of nuclear equations of state in core-collapse supernovae

  H. Togashi

  Deciphering multi-dimensional nature of core-collapse supernovae via gravitational-wave and neutrino signatures (SNeGWν2018), 10 Oct. 2018

  
• Supernova equation of state and symmetry energy at sub-nuclear densities

  H. Togashi

  8th International Symposium on Nuclear Symmetry Energy (NuSYM2018), 11 Sep. 2018, Invited

  
• Hyperon equation of state for core-collapse simulations based on the variational many-body theory

  H. Togashi; E. Hiyama; M. Takano

  13th International Conference on Hypernuclear and Strange Particle Physics (HYP2018), 28 Jun. 2018

  
• バリオン間相互作用に基づく核物質の状態方程式と天体物理への応用

  富樫甫; 肥山詠美子; 鷹野正利

  研究会「重力波観測時代のrプロセスと不安定核」, 22 Jun. 2018

  
• Microscopic equation of state for supernovae and compact stars

  H. Togashi

  RIKEN-YCU Joint Workshop, 27 Apr. 2018, Invited

  
• 現実的核力に基づく超新星物質状態方程式の構築

  富樫甫

  日本物理学会第73回年次大会, 23 Mar. 2018, Invited

  
• Supernova equation of state with realistic nuclear interactions and hyperon mixing in hot dense matter

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; K. Sumiyoshi; E. Hiyama

  International conference on “Physics of core-collapse supernovae and compact star formations”, 19 Mar. 2018

  
• 現実的核力に基づく核物質状態方程式とハイペロン混合系への拡張

  富樫甫

  新学術領域「中性子星核物質」理論班主催研究会, 21 Feb. 2018

  
• Properties of a variational equation of state in core-collapse supernovae

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; K. Sumiyoshi

  PACIFIC 2018 symposium, 14 Feb. 2018, Invited

  
• Variational approach to hot and dense matter in compact stars

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; K. Sumiyoshi; E. Hiyama

  International Workshop on Hadron and Nuclear Physics 2017 (HNP2017), 21 Dec. 2017, Invited

  
• Variational calculation for nuclear equation of state and hyperon mixing in the supernova core

  H. Togashi; E. Hiyama; M. Takano

  ECT* Workshop “ASTRA: Advances and open problems in low-energy nuclear and hadronic strangeness physics”, 26 Oct. 2017

  
• Nuclear equation of state with realistic nuclear forces

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; K. Sumiyoshi; E. Hiyama

  ECT* Workshop “New perspectives on Neutron Star Interiors”, 11 Oct. 2017

  
• 現実的核力に基づく核物質状態方程式の研究と今後の展望

  富樫甫

  RIBF理論若手放談会：エキゾチック核物理の広がり, 01 Aug. 2017, Invited

  
• 変分法による核物質状態方程式 –Supernova EOSテーブル完成までの道のり–

  富樫甫

  研究会「原子核のサイズと状態方程式の物理」, 30 Mar. 2017, Invited

  
• 変分法による有限温度ハイペロン物質状態方程式と原始中性子星への適用

  富樫甫; 肥山詠美子; 鷹野正利

  日本物理学会第72回年次大会, 20 Mar. 2017

  
• Hyperon stars at zero and finite temperatures with the variational method

  H. Togashi; E. Hiyama; M. Takano

  Strangeness Nuclear Physics 2017 (SNP2017), 14 Mar. 2017, Invited

  
• Nuclear equation of state with the variational method and the effect of Lambda hyperons in supernova cores

  H. Togashi; M. Takano; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; K. Sumiyoshi; E. Hiyama

  International Workshop on Quantum Many-Body Problems in Particle, Nuclear, and Atomic Physics, 08 Mar. 2017

  
• New table of supernova equation of state using a variational method and its application to astrophysical compact objects

  H. Togashi; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; M. Takano

  Quarks and Compact Stars 2017 (QCS2017), 20 Feb. 2017

  
• Variational study of hyperon mixing in neutron stars and supernova cores

  H. Togashi; E. Hiyama; M. Takano

  International Symposium on Neutron Star Matter (NSMAT 2016), 21 Nov. 2016

  
• New nuclear equation of state for core-collapse supernovae with realistic nuclear forces

  H. Togashi; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; M. Takano

  International conference “Compact stars and gravitational waves”, 01 Nov. 2016

  
• 変分法によるハイペロン混合を考慮した有限温度核物質状態方程式の研究

  富樫甫; 肥山詠美子; 鷹野正利

  日本物理学会2016年秋季大会, 22 Sep. 2016

  
• Variational study of hyperon effects on the nuclear equation of state at finite temperature

  H. Togashi; E. Hiyama; M. Takano

  International Nuclear Physics Conference 2016 (INPC2016), 12 Sep. 2016

  
• Microscopic equation of state for hot dense matter in core-collapse supernovae

  H. Togashi; E. Hiyama; M. Takano

  10th APCTP-BLTP/JINR-RCNP-RIKEN Joint Workshop on Nuclear and Hadron Physics, 20 Aug. 2016

  
• Variational study of the supernova equation of state with hyperons

  H. Togashi; E. Hiyama; M. Takano

  14th Symposium on Nuclei in the Cosmos (NIC XIV), 21 Jun. 2016

  
• Variational study for the equation of state of hot nuclear matter with hyperons

  H. Togashi; E. Hiyama; M. Takano

  J-PARC Workshop 2016: From Exotic hadrons to QGP, 09 Jun. 2016, Invited

  
• Hyperon equation of state for supernovae and neutron stars with the variational method

  H. Togashi; E. Hiyama; M. Takano

  4th DTA Symposium on Compact stars and gravitational wave astronomy, 14 May 2016

  
• クラスター変分法による有限温度ハイペロン物質状態方程式の研究

  富樫甫; 肥山詠美子; 鷹野正利

  日本物理学会第71回年次大会, 19 Mar. 2016

  
• Equation of state of hyperonic nuclear matter at zero and finite temperatures with the variational method

  H. Togashi; E. Hiyama; M. Takano

  12th International Conference on Low Energy Antiproton Physics (Leap2016), 07 Mar. 2016

  
• バリオン間相互作用に基づく核物質状態方程式と高密度天体現象

  富樫甫

  Kyoto Meeting 2015 Winter, 19 Dec. 2015

  
• Microscopic equation of state for supernova matter with realistic nuclear forces

  H. Togashi; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; M. Takano

  Symposium on Quarks to Universe in Computational Science (QUCS2015), 05 Nov. 2015

  
• クラスター変分法によるハイペロン混合を考慮した中性子星物質状態方程式の研究

  富樫甫; 肥山詠美子; 山本安夫; 鷹野正利

  日本物理学会2015年秋季大会, 26 Sep. 2015

  
• 多体変分計算によるハイペロン混合を考慮した中性子星物質状態方程式

  富樫甫; 肥山詠美子; 山本安夫; 鷹野正利

  ストレンジネスを含む原子核とバリオン間相互作用の将来を考える研究会, 23 Sep. 2015, Invited

  
• Equation of state for hyperonic nuclear matter with the variational method

  H. Togashi; E. Hiyama; Y. Yamamoto; M. Takano

  新学術領域研究「実験と観測で解き明かす中性子星の核物理」第４回研究会, 17 Sep. 2015

  
• Variational approach to neutron star matter with hyperons

  H. Togashi; E. Hiyama; Y. Yamamoto; M. Takano

  12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015), 08 Sep. 2015

  
• Microscopic nuclear equation of state for core-collapse supernovae with realistic nuclear forces

  H. Togashi; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; M. Takano

  Numazu Workshop 2015, 04 Sep. 2015, Invited

  
• Variational approach to hyperonic nuclear matter

  H. Togashi; E. Hiyama; Y. Yamamoto; M. Takano

  International workshop on strangeness nuclear physics -Future prospect and challenging-, 11 Aug. 2015, Invited

  
• Equation of state for nuclear matter in core-collapse supernovae with realistic nuclear forces

  H. Togashi; K. Nakazato; Y. Takehara; S. Yamamuro; H. Suzuki; M. Takano

  International Symposium on “Physics and Astronomy of Neutron Stars and Supernovae”, 22 Jun. 2015

  
• Variational study of the equation of state for hyperonic neutron stars

  H. Togashi; E. Hiyama; Y. Yamamoto; M. Takano

  Neutrinos and Dark Matter in Nuclear Physics 2015 (NDM15), 03 Jun. 2015

  
• 一様ハイペロン物質に対するクラスター変分法の研究

  富樫甫; 肥山詠美子; 鷹野正利; 山本安夫

  日本物理学会第70回年次大会, 24 Mar. 2015

  
• Variational study of nuclear equation of state for core-collapse supernovae and hyperonic neutron stars

  H. Togashi

  International Workshop on Neutrino Physics and Astrophysics, 16 Mar. 2015, Invited

  
• 変分法によるハイペロン混合を考慮した核物質状態方程式

  富樫甫; 肥山詠美子; 鷹野正利; 山本安夫

  新学術領域研究会「中性子星核物質」, 12 Mar. 2015

  
• Equation of state for hyperonic nuclear matter with the cluster variational method

  H. Togashi; E. Hiyama; M. Takano; Y. Yamamoto

  HPCI - iTHES Joint International Workshop on “Study of Neutron stars and Core-Collapse Supernovae”, 16 Dec. 2014, Invited

  
• Cluster variational method for nuclear matter with hyperons

  H. Togashi; E. Hiyama; M. Takano; Y. Yamamoto

  Strangeness Nuclear Physics 2014 (SNP2014), 13 Dec. 2014, Invited

  
• Variational study of the supernova equation of state with realistic nuclear forces

  H. Togashi; Y. Takehara; S. Yamamuro; K. Nakazato; H. Suzuki; K. Sumiyoshi; M. Takano

  4th Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and the Physical Society of Japan, 09 Oct. 2014

  
• 変分法によるハイペロン物質状態方程式の研究

  富樫甫; 肥山詠美子; 鷹野正利

  「ストレンジネスを含む原子核の最近の展開」研究会, 25 Sep. 2014

  
• Nuclear equation of state for core-collapse supernovae with realistic nuclear forces

  H. Togashi; Y. Takehara; S. Yamamuro; K. Nakazato; H. Suzuki; K. Sumiyoshi; M. Takano

  13th Symposium on Nuclei in the Cosmos (NIC XIII), 10 Jul. 2014

  
• Equation of state for nuclear matter in core-collapse supernovae by the variational method

  H. Togashi; Y. Takehara; S. Yamamuro; K. Nakazato; H. Suzuki; K. Sumiyoshi; M. Takano

  3rd International Workshop on State of the Art in Nuclear Cluster Physics (SOTANCP3), 28 May 2014

  
• クラスター変分法による有限温度核物質状態方程式とニュートリノを考慮した重力崩壊型超新星爆発シミュレーション

  富樫甫; 竹原裕太; 山室早智子; 中里健一郎; 鷹野正利; 鈴木英之; 住吉光介

  日本物理学会第69回年次大会, 29 Mar. 2014

  
• クラスター変分法による有限温度一様核物質状態方程式と超新星爆発計算への適用

  富樫甫; 鷹野正利; 住吉光介; 中里健一郎

  早稲田大学大学院先進理工学研究科物理学及応用物理学専攻卓越した大学院拠点形成支援事業平成25年度シンポジウム, 02 Dec. 2013

  
• Nuclear equation of state with the variational method and its application to supernova simulations

  H. Togashi; M. Takano; K. Sumiyoshi; K. Nakazato

  Hadron Nuclear Physics 2013 (HNP2013), 21 Jul. 2013

  
• New Nuclear Equation of State for Core-Collapse Supernovae with the Variational Method

  H. Togashi; S. Yamamuro; K. Nakazato; M. Takano; H. Suzuki; K. Sumiyoshi

  International Nuclear Physics Conference 2013 (INPC2013), 02 Jun. 2013

  
• クラスター変分法による超新星爆発計算用核物質状態方程式

  富樫甫; 山室早智子; 中里健一郎; 鷹野正利; 鈴木英之; 住吉光介

  日本物理学会第68回年次大会, 26 Mar. 2013

  
• Variational Study of a Nuclear Equation of State for Core-Collapse Supernovae

  H. Togashi; H. Kanzawa; M. Takano; S. Yamamuro; H. Suzuki; K. Nakazato; K. Sumiyoshi; H. Matsufuru

  Quarks to Universe in Computational Science (QUCS2012), 14 Dec. 2012

  
• クラスター変分法による核物質状態方程式と原始中性子星への適用

  富樫甫; 山室早智子; 中里健一郎; 神沢弘明; 鷹野正利; 鈴木英之

  日本物理学会第67回年次大会, 24 Mar. 2012

  
• The Nuclear Equation of State for Core-Collapse Supernovae with the Variational Method

  H. Togashi; H. Kanzawa; M. Takano; S. Yamamuro; H. Suzuki; K. Nakazato; K. Sumiyoshi; H. Matsufuru

  International Workshop “Formations of Compact Object: from the cradle to the grave”, 08 Mar. 2012

  
• 高エネルギー天体現象のための現実的核力に基づく核物質状態方程式

  富樫甫; 神沢弘明; 鷹野正利; 山室早智子; 中里健一郎; 鈴木英之; 住吉光介; 松古栄夫

  素核宇融合による計算基礎物理学の進展 −ミクロとマクロのかけ橋の構築−, 03 Dec. 2011

  
• Nuclear Equation of State for Supernova Simulations with the Variational Method

  H. Togashi; S. Yamamuro; K. Nakazato; H. Kanzawa; M. Takano; H. Suzuki

  Third International Conference on Nuclear Fragmentation (NUFRA2011), 03 Oct. 2011

  
• クラスター変分法に基づく低密度核物質状態方程式の研究

  富樫甫; 山室早智子; 神沢弘明; 鷹野正利; 鈴木英之

  日本物理学会2011年秋季大会, 16 Sep. 2011

  
• 低密度領域における核物質状態方程式を考慮したクラスター変分法の研究

  富樫甫; 神沢弘明; 鷹野正利; 鈴木英之

  日本物理学会第66回年次大会, 25 Mar. 2011

  
• クラスター変分法による高エネルギー天体現象のための核物質状態方程式の作成

  富樫甫; 鷹野正利; 神沢弘明

  研究会「バリオン物質と中性子星」, 30 Jan. 2011

  
• The Equation of State of Asymmetric Nuclear Matter at Zero and Finite Temperatures with the Variational Method

  H. Togashi; H. Kanzawa; M. Takano

  11th Symposium on Nuclei in the Cosmos (NIC XI), 20 Jul. 2010

  
• クラスター変分法による超新星爆発用核物質状態方程式の作成

  富樫甫; 鷹野正利; 神沢弘明; 鈴木英之; 住吉光介

  新学術領域第二回「クォーク力学・原子核構造に基づく爆発的天体現象と元素合成」研究会, 01 Jun. 2010

  
• クラスター変分法による有限温度非対称核物質状態方程式の解析

  富樫甫; 神沢弘明; 鷹野正利

  日本物理学会第65回年次大会, 21 Mar. 2010

  
• Variational Calculation for the Equation of State of Hot Asymmetric Nuclear Matter

  H. Togashi; H. Kanzawa; M. Takano

  10th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG10), 08 Mar. 2010

  
• Equation of State for Asymmetric Nuclear Matter at Finite Temperatures with the Variational Method

  H. Togashi; H. Kanzawa; M. Takano; K. Oyamatsu; K. Sumiyoshi

  3rd Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and the Physical Society of Japan, 16 Oct. 2009

  

Awards

• 28 Jan. 2019

  2018年度 基礎科学・国際特別研究員 研究成果発表会ポスター賞（物理学I分野）
• 23 Mar. 2018

  第12回日本物理学会理論核物理領域若手奨励賞（第19回核理論新人論文賞）
• 12 Mar. 2019

  理化学研究所桜舞賞研究奨励賞

External funds: Kakenhi

• A Systematic Study of Neutrino Reaction Rates in Dense Astrophysical Matter with Realistic Nuclear Forces

  Grant-in-Aid for Scientific Research (C)

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

  Kyoto University

  富樫 甫

  From 01 Apr. 2026, To 31 Mar. 2031, Granted

  ニュートリノ;核物質;状態方程式;超新星爆発;中性子星

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26K07085/
• Understanding of the explosion mechanism and the final stage of massive stars via observations of gravitational waves from supernova explosion with rotation

  Grant-in-Aid for Scientific Research (B)

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

  Kochi University;Institute of Physical and Chemical Research

  祖谷 元

  From 01 Apr. 2024, To 31 Mar. 2026, Granted

  宇宙物理;重力波;超新星爆発;状態方程式;中性子星;重力波星震学;原始中性子星

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K20848/
• 現実的核力を用いた超新星物質状態方程式に基づくニュートリノ・核子散乱の研究

  Grant-in-Aid for Early-Career Scientists

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

  Osaka University;Tohoku University

  富樫 甫

  From 01 Apr. 2021, To 31 Mar. 2026, Granted

  核物質;ニュートリノ反応;超新星爆発;中性子星;状態方程式;スピン偏極;変分法;ニュートリノ

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K13924/
• Extension of the supernova equation of state to Lambda hypernuclear system by using a variational method

  Grant-in-Aid for Early-Career Scientists

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

  Tohoku University;Kyushu University

  Hajime Togashi

  From 01 Apr. 2018, To 31 Mar. 2022, Project Closed

  核物質;状態方程式;ハイペロン;超新星爆発;中性子星;変分法;一様核物質

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18K13551/
• A systematic study of equations of state for hot and dense nuclear matter in compact astrophysical phenomena

  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

  Kyushu University

  富樫 甫

  From 01 Apr. 2018, To 31 Mar. 2020, Project Closed

  高密度核物質;状態方程式;超新星爆発;中性子星;対称エネルギー;核物質

  https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-18H04598/
• High-Density Equation of State from Quantum Chromodynamics

  Grant-in-Aid for Scientific Research (A)

  Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields

  Institute of Physical and Chemical Research

  初田 哲男

  From 01 Apr. 2018, To 31 Mar. 2019, Discontinued

  高密度物質;中性子星;格子量子色力学;クラスター変分法;重力波

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18H03712/
• Improvement of the nuclear equation of state for supernova simulations with the variational method starting from realistric nuclear forces

  Grant-in-Aid for Scientific Research (C)

  Waseda University

  Masatoshi TAKANO

  From 01 Apr. 2013, To 31 Mar. 2018, Project Closed

  核物質状態方程式;超新星爆発;中性子星;変分法

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25400275/

Education

Teaching subject(s)

• From 01 Apr. 2026, To 31 Mar. 2027

  Special study course II(Physical Science) P4

  5203, Year-long, Faculty of Science, 12
• From 01 Apr. 2026, To 31 Mar. 2027

  Seminar on Theoretical Nuclear Physics IA

  3041, Spring, Graduate School of Science, 2
• From 01 Apr. 2026, To 31 Mar. 2027

  Exercises for Electrodynamics 1

  2224, Fall, Faculty of Science, 2
• From 01 Apr. 2026, To 31 Mar. 2027

  Laboratory Work in Physics A5

  8258, Spring, Faculty of Science, 5
• From 01 Apr. 2026, To 31 Mar. 2027

  Laboratory Work in Physics A5

  8259, Fall, Faculty of Science, 5

Part-time lecturer

• From 01 Apr. 2026, To 24 Sep. 2026

  大阪工業大学, ロボティクス＆デザイン工学部
• From 20 May 2025, To 31 Mar. 2026

  大阪工業大学