Research field (1)：
Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research theme for competitive and other funds (8)：
2020 - 2023 Psychological measurement of collaborative learning
2019 - 2023 Grand Unified Theory indicated by Higgs Mass and Study of Proton Decay
2019 - 2023 クラウドを利用した協働作業プロセスの定量的指標の開発と評価への応用
2019 - 2022 U(3) Family Symmetry and TeV Scale Physics
2016 - 2019 TeV scale physics suggested by the charged lepton mass formula
2016 - 2019 An Analysis of On-Cloud Collaborative Report Writing and Its Pedagogical Utilization
2014 - 2017 A study on Higgs particle and dark matter candidates in a SUSY model with a continuos R symmetry
2012 - 2015 Grand gauge-Higgs unification and its dynamics
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Papers (39)：
Kentaro Kojima, Kazunori Takenaga, Toshifumi Yamashita. Grand gauge-Higgs unification on T2/Z3 via the diagonal embedding method. Physical Review D. 2023. 108. 3
Yoshiharu Kawamura, Eiji Kodaira, Kentaro Kojima, Toshifumi Yamashita. On representation matrices of boundary conditions in SU(n) gauge theories compactified on two-dimensional orbifolds. Journal of High Energy Physics. 2023. 2023. 4
Kentaro Kojima, Kazunori Takenaga, Toshifumi Yamashita. The standard model gauge symmetry from higher-rank unified groups in grand gauge-Higgs unification models. JOURNAL OF HIGH ENERGY PHYSICS. 2017. 6
