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Researcher Information

last modified:2024/01/08

Associate Professor ISHIWATA, Koji

Mail Laboratory Website
Laboratory Website

Faculty, Affiliation

Faculty of Mathematics and Physics, Institute of Science and Engineering

College and School Educational Field

Division of Mathematical and Physical Science, Graduate School of Natural Science and Technology
Course in Physics, School of Mathematics and Physics, College of Science and Engineering


Academic Background


The university of Tokyo(2010/04-2010/08)
California Institute of Technology(2010/09-2013/09)
Deutsches Elektronen-Synchrotron(2013/10-2015/02)
Kanazawa University(2015/03-)

Year & Month of Birth

Academic Society



Particle/Nuclear/Cosmic ray/Astro physics

Speciality Keywords

Research Themes



  •  Right-handed sneutrino as cold dark matter T. Asaka, K. Ishiwata and T. Moroi Phys. Rev. D 73 051301 2006
  •  High Energy Cosmic Rays from the Decay of Gravitino Dark Matter K. Ishiwata, S. Matsumoto and T. Moroi Phys. Rev. D 78 063505 2008
  •  Cosmic-Ray Positron from Superparticle Dark Matter and the PAMELA Anomaly K. Ishiwata, S. Matsumoto and T.Moroi Phys. Lett. B 675 446  2009
  •  High Energy Cosmic Rays from Decaying Supersymmetric Dark Matter K. Ishiwata, S. Matsumoto and T. Moroi JHEP 0905 110 2009
  •  Cosmic Gamma-ray from Inverse Compton Process in Unstable Dark Matter Scenario K. Ishiwata, S. Matsumoto and T. Moroi Phys. Lett. B 679 1 2009

show all

  •  Direct Detection of Electroweak-Interacting Dark Matter J. Hisano, K. Ishiwata, N. Nagata and T. Takesako JHEP 1107 005 2011
  •  Higgs Properties and Fourth Generation Leptons K. Ishiwata and M. B. Wise Phys. Rev. D84 055025 2011
  •  Dark Matter in Classically Scale-Invariant Two Singlets Standard Model K. Ishiwata  Phys. Lett. B710 134 2012
  •  Direct Search of Dark Matter in High-Scale Supersymmetry J. Hisano, K. Ishiwata and N. Nagata Phys. Rev D87 no.3 035020 2013
  •  Phenomenology of heavy vectorlike leptons K. Ishiwata and M. B. Wise Phys. Rev D88 no.5 055009 2013
  •  QCD Effects on Direct Detection of Wino Dark Matter J. Hisano, K. Ishiwata, N. Nagata JHEP 1506 097 2015/06/16
  •  Constraints on decaying dark matter from the extragalactic gamma-ray background   S. Ando, K. Ishiwata JCAP 1505 05 024 2015/05/14
  •  Grand Unification and Subcritical Hybrid Inflation  W. Buchmuller, K. Ishiwata  Phys. Rev. D  91 8 081302 2015/04/07
  •  Axino Dark Matter in Moduli-induced Baryogenesis K. Ishiwata JHEP 1409 122 122-1 2014/09/22
  •  Moduli-induced Baryogenesis K. Ishiwata, K. S. Jeong, F. Takahashi JHEP 1402 062 062-1 2014/02/14

Conference Presentations


Arts and Fieldwork


Theme to the desired joint research

Grant-in-Aid for Scientific Research

Competitive research funding,Contribution

Collaborative research,Consignment study

Classes (Bachelors)

○Presentation and Debate (Freshman Seminar II)(2017)
○Freshman Seminar I(2017)
○Presentation and Debate (Freshman Seminar II)(2017)

Classes (Graduate Schools)

○Seminar B(2017)
○Research Work B(2017)
○Exercise B(2017)
○Seminar B(2016)
○Research Work B(2016)
○Exercise B(2016)

International Project

International Students

Lecture themes

Others (Social Activities)

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