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Satou Ryousuke

佐藤 亮介

Graduate School of Science Department of Physics, Associate Professor

rsato het.phys.sci.osaka-u.ac.jp

Education

  • 2010/04 - 2013/03, The University of Tokyo, Graduate School of Science, Department of Physics, Ph. D. course
  • 2008/04 - 2010/03, The University of Tokyo, Graduate School of Science, Department of Physics, Master course
  • 2006/04 - 2008/03, The University of Tokyo, Faculty of Science, Department of Physics
  • 2004/04 - 2006/03, The University of Tokyo, College of Arts and Sciences

Research History

  • 2021/12 - Present, Osaka University, Graduate School of Science, Associate Professor
  • 2021/09 - 2021/11, Shanghai Jiao Tong University, Tsung-Dao Lee Institute, Visiting Fellow
  • 2018/09 - 2021/08, Deutsches Elektronen-Synchrotron (DESY), Theory Group, Postdoctoral Fellow
  • 2016/04 - 2018/09, Weizmann Institute of Science, Department of Particle Physics and Astrophysics, Postdoctral Fellow (Dean of Faculty Fellowship)
  • 2015/10 - 2016/03, Weizmann Institute of Science, Department of Particle Physics and Astrophysics, Visitor
  • 2013/04 - 2016/03, KEK, Theory Center, Research Fellow of Japan Society for the Promotion of Science (PD)
  • 2010/04 - 2013/03, University of Tokyo, Research Fellow of Japan Society for the Promotion of Science (DC1)

Research Areas

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

Professional Memberships

  • THE PHYSICAL SOCIETY OF JAPAN

Papers

  • Axion fragmentation, Fonseca, Nayara,Enrico Morgante,Sato, Ryosuke,Servant, Géraldine, JHEP, Vol. 04, p. 010-010, 2020/04/01
  • Light Dark Matter at Neutrino Experiments, Ema Yohei,Sala Filippo,Sato Ryosuke, Phys.Rev.Lett., Vol. 122, No. 18, 2019/05
  • Absolute Lower Bound on the Bounce Action, Ryosuke Sato,Masahiro Takimoto, Physical Review Letters, American Physical Society, Vol. 120, No. 9, 2018/02/28
  • Self-consistent calculation of the Sommerfeld enhancement, Kfir Blum,Ryosuke Sato,Tracy R. Slatyer, JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, IOP PUBLISHING LTD, Vol. 06, No. 6, 2016/06
  • 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
  • Chiral symmetry breaking and the quark bilinear condensate in large-N QCD, Sato, Ryosuke, PTEP, Vol. 2022, No. 10, 2022/10/04
  • ALP dark matter from kinetic fragmentation: opening up the parameter window, Cem Eröncel,Ryosuke Sato,Géraldine Servant,Philip Sørensen, Journal of Cosmology and Astroparticle Physics, IOP Publishing, Vol. 2022, No. 10, p. 053-053, 2022/10/01
  • Muon electric dipole moment as a probe of flavor-diagonal CP violation, Yuichiro Nakai,Ryosuke Sato,Yoshihiro Shigekami, Physics Letters B, Elsevier BV, Vol. 831, p. 137194-137194, 2022/08
  • Baryon asymmetric Universe from spontaneous CP violation, Kohei Fujikura,Yuichiro Nakai,Ryosuke Sato,Masaki Yamada, Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2022, No. 4, 2022/04
  • 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
  • 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
  • Neutrino experiments probe hadrophilic light dark matter, Ema, Yohei,Sala, Filippo,Sato, Ryosuke, SciPost Phys., Vol. 10, p. 072-072, 2021
  • SimpleBounce : a simple package for the false vacuum decay, Ryosuke Sato, Comput.Phys.Commun., Vol. 258, p. 107566-107566, 2021/01
  • 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
  • Simple Gradient Flow Equation for the Bounce Solution, Sato, Ryosuke, Phys.Rev.D, Vol. 101, No. 1, p. 016012-016012, 2020/01/17
  • Ultralight dark matter in disk galaxies, Bar Nitsan,Blum Kfir,Eby Joshua,Sato Ryosuke, Phys.Rev.D, Vol. 99, No. 10, 2019/05
  • Chiral Anomaly and Schwinger Effect in Non-Abelian Gauge Theories, Domcke Valerie,Ema Yohei,Mukaida Kyohei,Sato Ryosuke, JHEP, Vol. 03, 2019/03
  • 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, 2019/02
  • $e^+$ 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, 2018/09
  • 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, 2018/08
  • Lepton Electric Dipole Moment and Strong CP Violation, Ghosh Diptimoy,Sato Ryosuke, Phys.Lett.B, Vol. 777, 2018/02
  • Cosmic rays, antihelium, and an old navy spotlight, Kfir Blum,Kenny Chun Yu Ng,Ryosuke Sato,Masahiro Takimoto, PHYSICAL REVIEW D, AMER PHYSICAL SOC, Vol. 96, No. 10, 2017/11
  • Muon specific two-Higgs-doublet model, Tomohiro Abe,Ryosuke Sato,Kei Yagyu, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 07, No. 7, 2017/07
  • O(N) invariance of the multi-field bounce, Kfir Blum,Masazumi Honda,Ryosuke Sato,Masahiro Takimoto,Kohsaku Tobioka, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 05, No. 5, 2017/05
  • LHC future prospects of the 750 GeV resonance, Ryosuke Sato,Kohsaku Tobioka, PHYSICS LETTERS B, ELSEVIER SCIENCE BV, Vol. 760, p. 590-593, 2016/09
  • Composite accidental axions, Michele Redi,Ryosuke Sato, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 05, No. 5, 2016/05
  • Footprints of New Strong Dynamics via Anomaly and the 750 GeV Diphoton, Yuichiro Nakai,Ryosuke Sato,Kohsaku Tobioka, PHYSICAL REVIEW LETTERS, AMER PHYSICAL SOC, Vol. 116, No. 15, 2016/04
  • SUSY Higgs mass and collider signals with a Hidden Valley, Yuichiro Nakai,Matthew Reece,Ryosuke Sato, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 03, No. 3, 2016/03
  • 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, SPRINGER, Vol. 07, No. 7, 2015/07
  • Discrimination of dark matter models in future experiments, Tomohiro Abe,Ryuichiro Kitano,Ryosuke Sato, PHYSICAL REVIEW D, AMER PHYSICAL SOC, Vol. 91, No. 9, 2015/05
  • Quantum corrections to the spin-independent cross section of the inert doublet dark matter, Tomohiro Abe,Ryosuke Sato, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 03, No. 3, 2015/03
  • Neutrinoful universe, Tetsutaro Higaki,Ryuichiro Kitano,Ryosuke Sato, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 07, No. 7, 2014/07
  • Composite Higgsino, Masaki Asano,Ryosuke Sato, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 07, No. 7, 2014/07
  • Effective gravitational interactions of dark matter axions, Toshifumi Noumi,Ken'ichi Saikawa,Ryosuke Sato,Masahide Yamaguchi, PHYSICAL REVIEW D, AMER PHYSICAL SOC, Vol. 89, No. 6, p. 309-312, 2014/03
  • 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
  • Flavor of gluino decay in high-scale supersymmetry, Ryosuke Sato,Satoshi Shirai,Kohsaku Tobioka, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 10, No. 10, 2013/10
  • Gluino decay as a probe of high scale supersymmetry breaking, Ryosuke Sato,Satoshi Shirai,Kohsaku Tobioka, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 11, No. 11, 2012/11
  • A 125 GeV Higgs boson mass and gravitino dark matter in R-invariant direct gauge mediation, Masahiro Ibe,Ryosuke Sato, PHYSICS LETTERS B, ELSEVIER SCIENCE BV, Vol. 717, No. 1-3, p. 197-201, 2012/10
  • 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, ELSEVIER SCIENCE BV, Vol. 716, No. 3-5, p. 441-445, 2012/10
  • LHC test of CDF Wjj anomaly, Keisuke Harigaya,Ryosuke Sato,Satoshi Shirai, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 07, No. 7, 2012/07
  • 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, ELSEVIER SCIENCE BV, Vol. 709, No. 3, p. 218-221, 2012/03
  • Focus point assisted by right-handed neutrinos, Masaki Asano,Takeo Moroi,Ryosuke Sato,Tsutomu T. Yanagida, PHYSICS LETTERS B, ELSEVIER SCIENCE BV, Vol. 708, No. 1-2, p. 107-111, 2012/02
  • Dark matter and sneutrino inflation, 亮介 佐藤,直之 波場,重貴 松本, Soryushiron Kenkyu Electron., Soryushiron Kenkyu Editorial Office, Vol. 119, No. 3, 2011/11
  • 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, ELSEVIER SCIENCE BV, Vol. 705, No. 4, p. 337-341, 2011/11
  • A scalar boson as a messenger of new physics, Ryosuke Sato,Satoshi Shirai,Tsutomu T. Yanagida, PHYSICS LETTERS B, ELSEVIER SCIENCE BV, Vol. 704, No. 5, p. 490-494, 2011/10
  • Sneutrino inflation with asymmetric dark matter, Naoyuki Haba,Shigeki Matsumoto,Ryosuke Sato, PHYSICAL REVIEW D, AMER PHYSICAL SOC, Vol. 84, No. 5, 2011/09
  • A possible interpretation of CDF dijet mass anomaly and its realization in supersymmetry, Ryosuke Sato,Satoshi Shirai,Kazuya Yonekura, PHYSICS LETTERS B, ELSEVIER SCIENCE BV, Vol. 700, No. 2, p. 122-125, 2011/06
  • 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, SPRINGER, Vol. 04, No. 4, 2011/04
  • LHC reach of low scale gauge mediation with perturbatively stable vacuum, Ryosuke Sato,Satoshi Shirai, PHYSICS LETTERS B, ELSEVIER SCIENCE BV, Vol. 692, No. 2, p. 126-129, 2010/08
  • Low scale direct gauge mediation with perturbatively stable vacuum, Ryosuke Sato,Kazuya Yonekura, JOURNAL OF HIGH ENERGY PHYSICS, SPRINGER, Vol. 03, No. 3, 2010/03
  • Relaxing a constraint on the number of messengers in a low-scale gauge mediation, Ryosuke Sato,T. T. Yanagida,Kazuya Yonekura, PHYSICAL REVIEW D, AMER PHYSICAL SOC, Vol. 81, No. 4, 2010/02
  • 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

Awards

  • 14th Nakamura Seitaro Prize, Ryosuke Sato, Soryushi Shogakukai, 2019
  • 14th Particle Physics Medal: Young Scientist Award in Theoretical Particle Physics, Ryosuke Sato,Masahiro Takimoto, Soryushiron Group, 2019
  • 10th Particle Physics Medal: Young Scientist Award in Theoretical Particle Physics, Tomohiro Abe,Ryosuke Sato,Kei Yagyu, Soryushiron Group, 2015

Presentations

  • Bounce solution from gradient flow equation, Ryosuke Sato, COST workshop: Probing BSM physics at different scales, 2020/01/31
  • Lower Bound on the Bounce Action, Ryosuke Sato, KEK-PH 2018 winter, 2018/12/04
  • 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
  • Antihelium3 cosmic ray, Ryosuke Sato, Workshop on Beyond the Standard Model and the Early University, 2017/10/26
  • Secondary production of cosmic ray anti-deuteron and anti-Helium3, Ryosuke Sato, TeV Particle Astrophysics 2017, 2017/08/09
  • Self-consistent Calculation of the Sommerfeld Enhancement, Ryosuke Sato, TeV Particle Astrophysics 2016, 2016/09/13
  • Self-consistent Calculation of the Sommerfeld Enhancement, Ryosuke Sato, Cosmological Probes of Fundamental Physics, 2016/06/01
  • Higgs mass and Collider signals in SUSY Hidden Valley model, Ryosuke Sato, JPS meeting, 2016/03/22
  • Muon g-2 anomaly and constraints on two Higgs doublet model, Ryosuke Sato, New Physics Forum, 2015/08/19
  • Two Higgs doublet model in the light of muon g-2 anomaly, Ryosuke Sato, Asian Linear Collider Workshop(ALCW2015), 2015/04/21
  • Inflation, leptogenesis, neutrino masses and PeV neutrinos from right-handed neutrino dark matter, Ryosuke Sato, PPP 2014, 2014/07/29
  • PeV neutrinos from right-handed neutrino dark matter, Ryosuke Sato, Cargese International School, 2014/07/23
  • 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
  • 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
  • Gluino decay in High scale supersymmetry, Ryosuke Sato, Beyond the Standard Model 2014, 2014/03/05
  • 新物理直接探索, Ryosuke Sato, Flavor physics workshop, 2013/11/26
  • 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
  • Mass splitting between charged and neutral winos at two-loop level, Ryosuke Sato, SUSY 2013, 2013/08/29
  • 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
  • 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
  • Gluino Decay as a Probe of High Scale Supersymmetry Breaking, Ryosuke Sato, Summer Institute, 2012/08/17
  • Focus Point Assisted by Right-handed Neutrinos, Ryosuke Sato, 富山ミニワークショップ, 2012/02/21
  • Sneutrino Inflation with Asymmetric Dark Matter, Ryosuke Sato, JPS meeting, 2011/09/18
  • Sneutrino Inflation with Asymmetric Dark Matter, Ryosuke Sato, SUSY 2011, 2011/08/30
  • 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
  • Asymmetric Dark Matter and Sneutrino Inflation, Ryosuke Sato, PPP 2011, 2011/03/07
  • 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
  • Low Scale Gauge Mediation at Early LHC, Ryosuke Sato, SUSY 2010, 2010/08/26
  • 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