Kawata Kazumasa

カワタカズマサ | Kawata Kazumasa

Affiliation and department：
Job title： Assistant Professer

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

Research keywords (7)： gamma ray , cosmic ray , Solar magnetic field , Air shower , Muon , Particle acceleration , PeVatron

Research theme for competitive and other funds (10)：

2022 - 2026 Study of cosmic gamma-ray sources in the direction of the Galactic center region in the 10 TeV energies using the high density AS array
2021 - 2024 Nonthermal processes in lightning and thunderclouds revealed by observations at ground and high mountains
2019 - 2023 南天における 100TeV 宇宙ガンマ線の観測実証研究
2018 - 2020 南半球で観測する宇宙線中の太陽の影を用いた太陽磁場の研究
2017 - 2020 超高エネルギー宇宙粒子を用いた太陽磁場の診断

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Papers (101)：

Sousuke Okukawa, Kazuyuki Hara, Kinya Hibino, Yusaku Katayose, Kazumasa Kawata, Munehiro Ohnishi, Takashi Sako, Takashi K Sako, Makio Shibata, Atsushi Shiomi, et al. Neural networks for separation of cosmic gamma rays and hadronic cosmic rays in air shower observation with a large area surface detector array. Machine Learning: Science and Technology. 2024. 5. 2. 025016-025016
Ryo Higuchi, Takashi Sako, Toshihiro Fujii, Kazumasa Kawata, Eiji Kido. Effects of the Galactic Magnetic Field on the UHECR Correlation Studies with Starburst Galaxies. The Astrophysical Journal. 2023. 949. 2. 107-107
S. Okukawa, M. Anzorena, S. Asano, C. A. H. Condori, E. de la Fuente, A. Gomi, K. Hibino, N. Hotta, A. Jimenez-Meza, Y. Katayose, et al. Hadronic interaction model dependence in cosmic Gamma-ray flux estimation using an extensive air shower array with a muon detector. Experimental Astronomy. 2023. 55. 2. 325-342
D Kurashige, N Hotta, Y Katayose, K Kawata, M Ohnishi, T Saito, T K Sako, M Shibata, M Takita. Sensitivity of the large muon detector with the Tibet air-shower array to measure the primary proton spectrum between 40 and 630 TeV. Progress of Theoretical and Experimental Physics. 2022. 2022. 9
M. Amenomori, S. Asano, Y. W. Bao, X. J. Bi, D. Chen, T. L. Chen, W. Y. Chen, Xu Chen, Y. Chen, Cirennima, et al. Measurement of the Gamma-Ray Energy Spectrum beyond 100 TeV from the HESS J1843-033 Region. The Astrophysical Journal. 2022. 932. 2. 120-120

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MISC (59)：

川田和正, The Tibet ASγ Collaboration. Tibet 空気シャワー観測装置による sub-PeV 銀河拡散ガンマ線の観測. 日本天文学会2022年秋季年会. 2022
佐古崇志, 雨森道紘, 浅野駿太, 五味明日香, 日比野欣也, 堀田直己, 笠原克昌, 片寄祐作, 加藤千尋, 加藤勢, et al. Heliospheric modulation of the cosmic-ray anisotropy observed by the Tibet ASgamma experiment (3). 日本物理学会講演概要集(CD-ROM). 2022. 77. 1
倉茂大智, 雨森道紘, 浅野駿太, 五味明日香, 日比野欣也, 堀田直己, 笠原克昌, 片寄祐作, 加藤千尋, 加藤勢, et al. Observation of the proton spectrum around 100 TeV using Tibet-III and MD. 日本物理学会講演概要集(CD-ROM). 2022. 77. 1
加藤勢, 雨森道紘, 浅野駿太, 五味明日香, 日比野欣也, 堀田直己, 笠原克昌, 片寄祐作, 加藤千尋, 川島輝能, et al. Observation of very-high-energy gamma-ray sources with the Tibet air shower array (5). 日本物理学会講演概要集(CD-ROM). 2022. 77. 1
川田和正, 雨森道紘, 浅野駿太, 五味明日香, 日比野欣也, 堀田直己, 笠原克昌, 片寄祐作, 加藤千尋, 加藤勢, et al. チベット空気シャワー観測装置による銀河面からのsub-PeV拡散ガンマ線の観測. 日本物理学会講演概要集. 2021

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Lectures and oral presentations (30)：

Galactic sub-PeV Diffuse Gamma Rays Observed by the Tibet Air Shower Array
(COSPAR2022 (Athene, Greece) 2022)
Pioneering Highest Energy Gamma Ray Astronomy on the Tibet higland
(Regular Lunch Meetings between MEXT and National University Research Institutes/Centers 2022)
sub-PeVガンマ線の観測によるPeV宇宙線起源“PeVatron”の探査
(SNR Workshop 2022 2022)
ALPACA実験と将来計画
(第五回空気シャワー観測による宇宙線の起源探索勉強会 2022)
Status of sub-PeV gamma-ray observation and PeVatron
(Workshop for the high-energy astrophysics 2021)

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Education (3)：

Professional career (2)：

Work history (4)：

2018/04 - 現在 Institute for Cosmic Ray Research, University of Tokyo Assistant Professor
2012/04 - 2018/07 Nihon University College of Industrial Technology
2012/04 - 2018/03 The University of Tokyo Institute for Cosmic Ray Research
2009/04 - 2012/03 The University of Tokyo

Association Membership(s) (4)：

SOCIETY OF GEOMAGNETISM AND EARTH, PLANETARY AND SPACE SCIENCES , JAPAN GEOSCIENCE UNION , 日本天文学会 , 日本物理学会

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