Ishiwata Koji

Affiliation and department：
Job title：助教
Homepage URL (1)： https://hep.s.kanazawa-u.ac.jp/ishiwata/web/index.html

Research field (1)： Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research keywords (4)：インフレーション , 素粒子論的宇宙論 , 超対称理論 , 暗黒物質

Research theme for competitive and other funds (7)：

2020 - 2025 極弱相互作用を持つ軽い新粒子の描く新宇宙描像とその実験的検証
2018 - 2023 ニュートリノで探る対称性と宇宙像
2017 - 2021 New physics from dark matter and Higgs
2017 - 2021 Cosmological Evolution and Search for Light New Particles with Ultraweak Interactions
2017 - 2019 超対称素粒子模型の真空構造解明とインフレーション宇宙の新展開

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Papers (53)：

Yoshihiro Gunji, Koji Ishiwata, Takahiro Yoshida. Supersymmetric baryogenesis in a hybrid inflation model. Journal of High Energy Physics. 2023. 2023. 8
Koji Ishiwata. Topology-insensitive axion mass in magnetic topological insulators. Physical Review B. 2022. 106. 19
Shin’ichiro Ando, Nagisa Hiroshima, Koji Ishiwata. Constraining the primordial curvature perturbation using dark matter substructure. Physical Review D. 2022. 106. 10
Yoshihiro Gunji, Koji Ishiwata, Takahiro Yoshida. Subcritical regime of hybrid inflation with modular A4 symmetry. Journal of High Energy Physics. 2022. 2022. 11
Koji Ishiwata, Eiichiro Komatsu, Ippei Obata. Axion-gauge field dynamics with backreaction. Journal of Cosmology and Astroparticle Physics. 2022. 2022. 03. 010-010

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MISC (9)：

Junji Hisano, Koji Ishiwata, Natsumi Nagata, Masato Yamanaka. Direct detection of vector dark matter (vol 126, pg 435, 2011). PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS. 2015. 10
Ishiwata Koji. 24aGE-4 Cosmic gamma-ray from inverse Compton process in unstable dark matter scenario. Meeting abstracts of the Physical Society of Japan. 2012. 67. 1. 3-3
Koji Ishiwata, Shigeki Matsumoto, Takeo Moroi. Cosmic Gamma-ray from Inverse Compton Process in Unstable Dark Matter Scenario. SCIENCE WITH THE NEW GENERATION OF HIGH-ENERGY GAMMA-RAY EXPERIMENTS. 2010. 1223. 60-+
Ishiwata Koji, Matsumoto Shigeki, Moroi Takeo. 13pSJ-4 Cosmic Gamma-ray from Inverse Compton Process in Unstable Dark Matter Scenario. Meeting abstracts of the Physical Society of Japan. 2009. 64. 2. 18-18
Ishiwata Koji, Ito Takumi, Moroi Takeo. 27aVP-7 Long-Lived Unstable Superparticles at the LHC. Meeting abstracts of the Physical Society of Japan. 2009. 64. 1. 3-3

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Lectures and oral presentations (37)：

超対称ハイブリッドインフレーションと宇宙バリオン生成
(瀬戸内サマーインスティテュート (SSI2024) 2024)
Dark Matter-driven Studies: Topological Insulators and Inflation
(Extreme Mass Dark Matter workshop 2024)
New approaches to/from dark matter
(2023)
Indirect searches on heavy dark matter decays and inflation
(Direct and Indirect Detection of Dark Matter, The 2nd DMNet International Symposium 2022)
Axion mass in magnetic topological insulators
(Summer NRF-JSPS Workshop 2022)

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Education (2)：

Professional career (1)：

Work history (4)：

2015/03 - 現在 Kanazawa University Institute of Science and Engineering, Faculty of Mathematics and Physics
2013/10 - 2015/02 ドイツ電子シンクロトロン研究員
2010/09 - 2013/09 カリフォルニア工科大学ムーア研究員
2010/04 - 2011/08 The University of Tokyo Institute for Cosmic Ray Research

Awards (4)：

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