Kawata Kazumasa

カワタカズマサ | Kawata Kazumasa

Affiliation and department：
Job title： Associate 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 (12)：

2024 - 2029 Challenges in Space Weather Prediction Using the Sun's Shadow in the Cosmic Rays
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
2018 - 2023 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
2019 - 2023 南天における 100TeV 宇宙ガンマ線の観測実証研究

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Papers (112)：

S. Kato, M. Anzorena, D. Chen, K. Fujita, R. Garcia, J. Huang, G. Imaizumi, T. Kawashima, K. Kawata, A. Mizuno, et al. Quantitative constraint on the contribution of resolved gamma-ray sources to the sub-PeV Galactic diffuse gamma-ray flux measured by the Tibet ASγ experiment. 2024
Harufumi Tsuchiya, Kinya Hibino, Kazumasa Kawata, Munehiro Ohnishi, Masato Takita, Kazuoki Munakata, Chihiro Kato, Susumu Shimoda, Quanqi Shi, Shuo Wang, et al. Characteristics of temporal variability of long-duration bursts of high-energy radiation associated with thunderclouds on the Tibetan plateau. Progress in Earth and Planetary Science. 2024. 11. 1
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
Eduardo de la Fuente, Ivan Toledano-Juárez, Kazumasa Kawata, Miguel A. Trinidad, Mitsuyosh Yamagishi, Shunya Takekawa, Daniel Tafoya, Munehiro Ohnishi, Atsushi Nishimura, Sei Kato, et al. Evidence for a gamma-ray molecular target in the enigmatic PeVatron candidate LHAASO J2108+5157. Astronomy & Astrophysics. 2023. 675. L5
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

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MISC (65)：

Kazumasa Kawata. Galaxy’s Gamma Glow Illuminates Cosmic-Ray Origins. Physics Magazine. 2023. 16. 169
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 (4). 日本物理学会講演概要集(CD-ROM). 2023. 78. 2
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

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Lectures and oral presentations (38)：

Searching for Galactic PeVatrons with the Tibet ASgamma Experiment
(Searching for the Sources of Galactic Cosmic Rays (SuGAR2024), Wisconsin Madison, US 2024)
Ultra-High-Energy Gamma-Ray Observation with the Tibet ASgamma Experiment
(XXXIIth International Astronomical Union General Assembly, Cape Town 2024)
Recent Results of sub-PeV Gamma-Ray Observation with the Tibet ASgamma Experiment
(22nd International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2024), Puerto Vallarta, Mexico 2024)
Recent Observation and Modeling of The Sidereal Cosmic-ray Anisotropy at TeV Energies with the Tibet ASgamma Experiment
(21st Asia Oceania Geosciences Society (AOGS2024) , Pyeongchang, South Korea 2024)
Observation of high-energy cosmic ray and gamma ray and solar physics with the surface air shower experiments
(2023 Symposium of Japan Solar Physics Community, NAOJ 2024)

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Education (3)：

2000 - 2003 Konan University
1998 - 2000 Konan University
1994 - 1998 Konan University

Professional career (2)：

Master of Science (Konan University)
Doctor of Science (Konan University)

Work history (5)：

2024/09 - 現在 The University of Tokyo Institute for Cosmic Ray Research Associate Professor
2018/04 - 2024/08 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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