顔写真

PHOTO

Satou Ryousuke
佐藤　亮介
Satou Ryousuke
佐藤　亮介
Graduate School of Science　Department of Physics, Associate Professor
rsato het.phys.sci.osaka-u.ac.jp

Research History 7

  1. 2021/12 - Present
    Osaka University　Graduate School of Science　Associate Professor

  2. 2021/09 - 2021/11
    Shanghai Jiao Tong University　Tsung-Dao Lee Institute　Visiting Fellow

  3. 2018/09 - 2021/08
    Deutsches Elektronen-Synchrotron (DESY)　Theory Group　Postdoctoral Fellow

  4. 2016/04 - 2018/09
    Weizmann Institute of Science　Department of Particle Physics and Astrophysics　Postdoctral Fellow (Dean of Faculty Fellowship)

  5. 2015/10 - 2016/03
    Weizmann Institute of Science　Department of Particle Physics and Astrophysics　Visitor

  6. 2013/04 - 2016/03
    KEK　Theory Center　Research Fellow of Japan Society for the Promotion of Science (PD)

  7. 2010/04 - 2013/03
    University of Tokyo　Research Fellow of Japan Society for the Promotion of Science (DC1)

Education 4

  1. The University of Tokyo　Graduate School of Science　Department of Physics, Ph. D. course

    2010/04 - 2013/03

  2. The University of Tokyo　Graduate School of Science　Department of Physics, Master course

    2008/04 - 2010/03

  3. The University of Tokyo　Faculty of Science　Department of Physics

    2006/04 - 2008/03

  4. The University of Tokyo　College of Arts and Sciences

    2004/04 - 2006/03

Professional Memberships 1

  1. THE PHYSICAL SOCIETY OF JAPAN

Research Areas 1

  1. Natural sciences / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics /

Awards 3

  1. 14th Nakamura Seitaro Prize

    Ryosuke Sato　Soryushi Shogakukai　2019

  2. 14th Particle Physics Medal: Young Scientist Award in Theoretical Particle Physics

    Ryosuke Sato, Masahiro Takimoto　Soryushiron Group　2019

  3. 10th Particle Physics Medal: Young Scientist Award in Theoretical Particle Physics

    Tomohiro Abe, Ryosuke Sato, Kei Yagyu　Soryushiron Group　2015

Papers 57

  1. Axion fragmentation

    Fonseca, Nayara, Enrico Morgante, Sato, Ryosuke, Servant, Géraldine

    JHEP　Vol. 04　p. 010-010　2020/04/01　Research paper (scientific journal)

  2. Light Dark Matter at Neutrino Experiments

    Ema, Yohei, Sala, Filippo, Sato, Ryosuke

    Phys.Rev.Lett.　Vol. 122　No. 18　p. 181802-181802　2019/05/09　Research paper (scientific journal)

  3. Absolute Lower Bound on the Bounce Action

    Ryosuke Sato, Masahiro Takimoto

    Physical Review Letters　Vol. 120　No. 9　2018/02/28　Research paper (scientific journal)

    Publisher: American Physical Society

  4. Self-consistent calculation of the Sommerfeld enhancement

    Kfir Blum, Ryosuke Sato, Tracy R. Slatyer

    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS　Vol. 06　No. 6　2016/06　Research paper (scientific journal)

  5. Mass splitting between charged and neutral winos at two-loop level

    Masahiro Ibe, Shigeki Matsumoto, Ryosuke Sato

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics　Vol. 721　No. 4-5　p. 252-260　2013/04/25　Research paper (scientific journal)

  6. Composite dark matter with forbidden annihilation

    Tomohiro Abe, Ryosuke Sato, Takumu Yamanaka

    JHEP　Vol. 09　p. 064-064　2024/09/12　Research paper (scientific journal)

  7. Cosmological phase transitions in composite Higgs models

    Kohei Fujikura, Nakai, Yuichiro, Sato, Ryosuke, Wang, Yaoduo

    JHEP　Vol. 09　p. 053-053　2023/09/11　Research paper (scientific journal)

  8. A large muon EDM from dark matter

    Khaw, Kim Siang, Nakai, Yuichiro, Sato, Ryosuke, Yoshihiro Shigekami, Zhang, Zhihao

    JHEP　Vol. 02　p. 234-234　2023/02/24　Research paper (scientific journal)

  9. ALP dark matter from kinetic fragmentation: opening up the parameter window

    Eröncel, Cem, Sato, Ryosuke, Servant, Geraldine, Sørensen, Philip

    JCAP　Vol. 10　No. 10　p. 053-053　2022/10/17　Research paper (scientific journal)

    Publisher: IOP Publishing

  10. Chiral symmetry breaking and the quark bilinear condensate in large-N QCD

    Sato, Ryosuke

    PTEP　Vol. 2022　No. 10　2022/10/17　Research paper (scientific journal)

  11. Muon electric dipole moment as a probe of flavor-diagonal CP violation

    Nakai, Yuichiro, Sato, Ryosuke, Shigekami, Yoshihiro

    Phys.Lett.B　Vol. 831　p. 137194-137194　2022/08/10　Research paper (scientific journal)

    Publisher: Elsevier BV

  12. Baryon asymmetric Universe from spontaneous CP violation

    Fujikura, Kohei, Nakai, Yuichiro, Sato, Ryosuke, Masaki Yamada

    JHEP　Vol. 04　No. 4　p. 105-105　2022/04/19　Research paper (scientific journal)

    Publisher: Springer Science and Business Media LLC

  13. Axion fragmentation on the lattice

    Enrico Morgante, Ratzinger, Wolfram, Sato, Ryosuke, Stefanek, Ben A.

    JHEP　Vol. 12　p. 037-037　2021/12/07　Research paper (scientific journal)

  14. Negative mode problem of false vacuum decay revisited

    Jinno, Ryusuke, Sato, Ryosuke

    Phys.Rev.D　Vol. 104　No. 9　p. 096009-096009　2021/11/01　Research paper (scientific journal)

  15. Neutrino experiments probe hadrophilic light dark matter

    Ema, Yohei, Sala, Filippo, Sato, Ryosuke

    SciPost Phys.　Vol. 10　No. 3　p. 072-072　2021/03/24　Research paper (scientific journal)

  16. Dark matter models for the 511 keV galactic line predict keV electron recoils on Earth

    Ema, Yohei, Filippo Sala, Sato, Ryosuke

    Eur.Phys.J.C　Vol. 81　No. 2　p. 129-129　2021/02/06　Research paper (scientific journal)

  17. SimpleBounce : a simple package for the false vacuum decay

    Ryosuke Sato

    Comput.Phys.Commun.　Vol. 258　p. 107566-107566　2021/01　Research paper (scientific journal)

  18. Relaxion Fluctuations (Self-stopping Relaxion) and Overview of Relaxion Stopping Mechanisms

    Fonseca, Nayara, Enrico Morgante, Sato, Ryosuke, Servant, Géraldine

    JHEP　Vol. 05　p. 080-080　2020/05/18　Research paper (scientific journal)

  19. Simple Gradient Flow Equation for the Bounce Solution

    Sato, Ryosuke

    Phys.Rev.D　Vol. 101　No. 1　p. 016012-016012　2020/01/17　Research paper (scientific journal)

  20. Ultralight dark matter in disk galaxies

    Bar, Nitsan, Blum, Kfir, Eby, Joshua, Sato, Ryosuke

    Phys.Rev.D　Vol. 99　No. 10　p. 103020-103020　2019/05/29　Research paper (scientific journal)

  21. Chiral Anomaly and Schwinger Effect in Non-Abelian Gauge Theories

    Domcke, Valerie, Ema, Yohei, Mukaida, Kyohei, Sato, Ryosuke

    JHEP　Vol. 03　p. 111-111　2019/03/19　Research paper (scientific journal)

  22. Current status and future prospects of the singlet-doublet dark matter model with CP-violation

    Abe, Tomohiro, Sato, Ryosuke

    Phys.Rev.D　Vol. 99　No. 3　p. 035012-035012　2019/02/13　Research paper (scientific journal)

  23. Current status of the singlet-doublet dark matter model

    Tomohiro Abe, Ryosuke Sato

    Proceedings of Science　Vol. 356　2019　Research paper (international conference proceedings)

    Publisher: Sissa Medialab Srl

  24. $e^+$ and $\bar{p}$ production in $pp$ collisions and the cosmic-ray $e^+/\bar{p}$ ratio

    Blum, Kfir, Sato, Ryosuke, Takimoto, Masahiro

    Phys.Rev.D　Vol. 98　No. 6　p. 063022-063022　2018/09/28　Research paper (scientific journal)

  25. Unified Origin of Axion and Monopole Dark Matter, and Solution to the Domain-wall Problem

    Sato, Ryosuke, Takahashi, Fuminobu, Yamada, Masaki

    Phys.Rev.D　Vol. 98　No. 4　p. 043535-043535　2018/08/28　Research paper (scientific journal)

  26. Lepton Electric Dipole Moment and Strong CP Violation

    Ghosh, Diptimoy, Sato, Ryosuke

    Phys.Lett.B　Vol. 777　p. 335-339　2018/02/10　Research paper (scientific journal)

  27. Cosmic rays, antihelium, and an old navy spotlight

    Kfir Blum, Kenny Chun Yu Ng, Ryosuke Sato, Masahiro Takimoto

    PHYSICAL REVIEW D　Vol. 96　No. 10　2017/11　Research paper (scientific journal)

  28. Muon specific two-Higgs-doublet model

    Tomohiro Abe, Ryosuke Sato, Kei Yagyu

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 07　No. 7　2017/07　Research paper (scientific journal)

  29. O(N) invariance of the multi-field bounce

    Kfir Blum, Masazumi Honda, Ryosuke Sato, Masahiro Takimoto, Kohsaku Tobioka

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 05　No. 5　2017/05　Research paper (scientific journal)

  30. LHC future prospects of the 750 GeV resonance

    Ryosuke Sato, Kohsaku Tobioka

    PHYSICS LETTERS B　Vol. 760　p. 590-593　2016/09　Research paper (scientific journal)

  31. Composite accidental axions

    Michele Redi, Ryosuke Sato

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 05　No. 5　2016/05　Research paper (scientific journal)

  32. Footprints of New Strong Dynamics via Anomaly and the 750 GeV Diphoton

    Yuichiro Nakai, Ryosuke Sato, Kohsaku Tobioka

    PHYSICAL REVIEW LETTERS　Vol. 116　No. 15　2016/04　Research paper (scientific journal)

  33. SUSY Higgs mass and collider signals with a Hidden Valley

    Yuichiro Nakai, Matthew Reece, Ryosuke Sato

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 03　No. 3　2016/03　Research paper (scientific journal)

  34. Lepton-specific two Higgs doublet model as a solution of muon g-2 anomaly

    Tomohiro Abe, Ryosuke Sato, Kei Yagyu

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 07　No. 7　2015/07　Research paper (scientific journal)

  35. Discrimination of dark matter models in future experiments

    Tomohiro Abe, Ryuichiro Kitano, Ryosuke Sato

    PHYSICAL REVIEW D　Vol. 91　No. 9　2015/05　Research paper (scientific journal)

  36. Quantum corrections to the spin-independent cross section of the inert doublet dark matter

    Tomohiro Abe, Ryosuke Sato

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 03　No. 3　2015/03　Research paper (scientific journal)

  37. Neutrinoful universe

    Tetsutaro Higaki, Ryuichiro Kitano, Ryosuke Sato

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 07　No. 7　2014/07　Research paper (scientific journal)

  38. Composite Higgsino

    Masaki Asano, Ryosuke Sato

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 07　No. 7　2014/07　Research paper (scientific journal)

  39. Effective gravitational interactions of dark matter axions

    Toshifumi Noumi, Ken'ichi Saikawa, Ryosuke Sato, Masahide Yamaguchi

    PHYSICAL REVIEW D　Vol. 89　No. 6　p. 309-312　2014/03　Research paper (scientific journal)

  40. Production and Evolution of Dark Matter Axions in the Early Universe

    Saikawa Ken'ichi, Hiramatsu Takashi, Kawasaki Masahiro, Noumi Toshifumi, Sato Ryosuke, Sekiguchi Toyokazu, Yamaguchi Masahide

    10th Patras Workshop on Axions, WIMPs and WISPs　2014

  41. Flavor of gluino decay in high-scale supersymmetry

    Ryosuke Sato, Satoshi Shirai, Kohsaku Tobioka

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 10　No. 10　2013/10　Research paper (scientific journal)

  42. Gluino decay as a probe of high scale supersymmetry breaking

    Ryosuke Sato, Satoshi Shirai, Kohsaku Tobioka

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 11　No. 11　2012/11　Research paper (scientific journal)

  43. A 125 GeV Higgs boson mass and gravitino dark matter in R-invariant direct gauge mediation

    Masahiro Ibe, Ryosuke Sato

    PHYSICS LETTERS B　Vol. 717　No. 1-3　p. 197-201　2012/10　Research paper (scientific journal)

  44. Enhanced diphoton signal of the Higgs boson and the muon g-2 in gauge mediation models

    Ryosuke Sato, Kohsaku Tobioka, Norimi Yokozaki

    PHYSICS LETTERS B　Vol. 716　No. 3-5　p. 441-445　2012/10　Research paper (scientific journal)

  45. LHC test of CDF Wjj anomaly

    Keisuke Harigaya, Ryosuke Sato, Satoshi Shirai

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 07　No. 7　2012/07　Research paper (scientific journal)

  46. Extra matters decree the relatively heavy Higgs of mass about 125 GeV in the supersymmetric model

    Takeo Moroi, Ryosuke Sato, Tsutomu T. Yanagida

    PHYSICS LETTERS B　Vol. 709　No. 3　p. 218-221　2012/03　Research paper (scientific journal)

  47. Focus point assisted by right-handed neutrinos

    Masaki Asano, Takeo Moroi, Ryosuke Sato, Tsutomu T. Yanagida

    PHYSICS LETTERS B　Vol. 708　No. 1-2　p. 107-111　2012/02　Research paper (scientific journal)

  48. Dark matter and sneutrino inflation

    亮介 佐藤, 直之 波場, 重貴 松本

    Soryushiron Kenkyu Electron.　Vol. 119　No. 3　2011/11

    Publisher: Soryushiron Kenkyu Editorial Office

  49. Non-anomalous discrete R-symmetry, extra matters, and enhancement of the lightest SUSY Higgs mass

    Masaki Asano, Takeo Moroi, Ryosuke Sato, Tsutomu T. Yanagida

    PHYSICS LETTERS B　Vol. 705　No. 4　p. 337-341　2011/11　Research paper (scientific journal)

  50. A scalar boson as a messenger of new physics

    Ryosuke Sato, Satoshi Shirai, Tsutomu T. Yanagida

    PHYSICS LETTERS B　Vol. 704　No. 5　p. 490-494　2011/10　Research paper (scientific journal)

  51. Sneutrino inflation with asymmetric dark matter

    Naoyuki Haba, Shigeki Matsumoto, Ryosuke Sato

    PHYSICAL REVIEW D　Vol. 84　No. 5　2011/09　Research paper (scientific journal)

  52. A possible interpretation of CDF dijet mass anomaly and its realization in supersymmetry

    Ryosuke Sato, Satoshi Shirai, Kazuya Yonekura

    PHYSICS LETTERS B　Vol. 700　No. 2　p. 122-125　2011/06　Research paper (scientific journal)

  53. Gravitino dark matter and light gluino in an R-invariant low scale gauge mediation

    Masahiro Ibe, Ryosuke Sato, Tsutomu T. Yanagida, Kazuya Yonekura

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 04　No. 4　2011/04　Research paper (scientific journal)

  54. LHC reach of low scale gauge mediation with perturbatively stable vacuum

    Ryosuke Sato, Satoshi Shirai

    PHYSICS LETTERS B　Vol. 692　No. 2　p. 126-129　2010/08　Research paper (scientific journal)

  55. Low scale direct gauge mediation with perturbatively stable vacuum

    Ryosuke Sato, Kazuya Yonekura

    JOURNAL OF HIGH ENERGY PHYSICS　Vol. 03　No. 3　2010/03　Research paper (scientific journal)

  56. Relaxing a constraint on the number of messengers in a low-scale gauge mediation

    Ryosuke Sato, T. T. Yanagida, Kazuya Yonekura

    PHYSICAL REVIEW D　Vol. 81　No. 4　2010/02　Research paper (scientific journal)

  57. Quantum Corrections to the Spin-Independent Cross Section in the Inert Higgs Doublet Model

    Abe Tomohiro, Sato Ryosuke

    2nd Toyama International Workshop on Higgs as a Probe of New Physics

Presentations 29

  1. Bounce solution from gradient flow equation

    Ryosuke Sato

    COST workshop: Probing BSM physics at different scales　2020/01/31

  2. Lower Bound on the Bounce Action

    Ryosuke Sato

    KEK-PH 2018 winter　2018/12/04

  3. An absolute lowerbound on the bounce action

    佐藤 亮介

    日本物理学会 第73回年次大会　2018/03/25

  4. Antihelium3 cosmic ray

    Ryosuke Sato

    Workshop on Beyond the Standard Model and the Early University　2017/10/26

  5. Secondary production of cosmic ray anti-deuteron and anti-Helium3

    Ryosuke Sato

    TeV Particle Astrophysics 2017　2017/08/09

  6. Self-consistent Calculation of the Sommerfeld Enhancement

    Ryosuke Sato

    TeV Particle Astrophysics 2016　2016/09/13

  7. Self-consistent Calculation of the Sommerfeld Enhancement

    Ryosuke Sato

    Cosmological Probes of Fundamental Physics　2016/06/01

  8. Higgs mass and Collider signals in SUSY Hidden Valley model

    Ryosuke Sato

    JPS meeting　2016/03/22

  9. Muon g-2 anomaly and constraints on two Higgs doublet model

    Ryosuke Sato

    New Physics Forum　2015/08/19

  10. Two Higgs doublet model in the light of muon g-2 anomaly

    Ryosuke Sato

    Asian Linear Collider Workshop(ALCW2015)　2015/04/21

  11. Inflation, leptogenesis, neutrino masses and PeV neutrinos from right-handed neutrino dark matter

    Ryosuke Sato

    PPP 2014　2014/07/29

  12. PeV neutrinos from right-handed neutrino dark matter

    Ryosuke Sato

    Cargese International School　2014/07/23

  13. Inflation, leptogenesis, neutrino masses and PeV neutrinos from right-handed neutrino dark matter

    Ryosuke Sato

    第三回 次世代の加速器ニュートリノ実験ワークショップ　2014/06/22

  14. Gluino decay in High-scale SUSY

    Ryosuke Sato

    新学術領域 「先端加速器LHCが切り拓くテラスケールの素粒子物理学」研究会　2014/03/26

  15. Gluino decay in High scale supersymmetry

    Ryosuke Sato

    Beyond the Standard Model 2014　2014/03/05

  16. 新物理直接探索

    Ryosuke Sato

    Flavor physics workshop　2013/11/26

  17. グルイーノの崩壊で探る 超対称性の破れ

    Ryosuke Sato

    JPS meeting　2013/09/20

  18. Mass splitting between charged and neutral winos at two-loop level

    Ryosuke Sato

    SUSY 2013　2013/08/29

  19. 荷電ウィーノと中性ウィーノの質量差の 2ループレベルの計算

    Ryosuke Sato

    PPP 2013　2013/08/06

  20. 荷電ウィーノと中性ウィーノの質量差の精密計算

    Ryosuke Sato

    JPS meeting　2013/03/29

  21. Gluino Decay as a Probe of High Scale Supersymmetry Breaking

    Ryosuke Sato

    Summer Institute　2012/08/17

  22. Focus Point Assisted by Right-handed Neutrinos

    Ryosuke Sato

    富山ミニワークショップ　2012/02/21

  23. Sneutrino Inflation with Asymmetric Dark Matter

    Ryosuke Sato

    JPS meeting　2011/09/18

  24. Sneutrino Inflation with Asymmetric Dark Matter

    Ryosuke Sato

    SUSY 2011　2011/08/30

  25. The lightest Higgs mass in MSSM + extra matter

    Ryosuke Sato

    LHCが切り拓くテラスケール物理　2011/08/22

  26. Asymmetric Dark Matter and Sneutrino Inflation

    Ryosuke Sato

    PPP 2011　2011/03/07

  27. グラビティーノが軽い超対称模型と7TeVのLHC

    Ryosuke Sato

    JPS meeting　2010/09/11

  28. Low Scale Gauge Mediation at Early LHC

    Ryosuke Sato

    SUSY 2010　2010/08/26

  29. Low Scale GMSB and early LHC reach

    Ryosuke Sato

    LHCが切り拓くテラスケール物理　2010/06/19