Otsuka Hajime 大塚啓

Researcher Number	80777988
Other IDs	https://orcid.org/0000-0002-0791-6180
Affiliation (Current)	2025: 九州大学, 理学研究院, 助教
Affiliation (based on the past Project Information) *help	2021 – 2025: 九州大学, 理学研究院, 助教 2020: 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 学振特別研究員 2017 – 2018: 早稲田大学, 理工学術院, 助教
Review Section/Research Field	Principal Investigator Transformative Research Areas, Section (II) / Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics / Particle/Nuclear/Cosmic ray/Astro physics
Keywords	Principal Investigator 超弦理論 / 素粒子現象論 / CP対称性の破れ / フレーバー対称性 / 有効理論 / 機械学習 / 素粒子的宇宙論 / スワンプランド / モジュラー対称性 / オービフォールド / ブローアップ / モジュライ / アクシオン

機械学習で迫るフレーバー構造およびCP対称性の破れPrincipal Investigator
- Principal Investigator
  
  大塚啓
- Project Period (FY)
  2025 – 2026
- Research Category
  
  Grant-in-Aid for Transformative Research Areas (A)
- Review Section
  
  Transformative Research Areas, Section (II)
- Research Institution
  Kyushu University
機械学習を用いた弦の有効理論の構築Principal Investigator
- Principal Investigator
  
  大塚啓
- Project Period (FY)
  2023 – 2024
- Research Category
  
  Grant-in-Aid for Transformative Research Areas (A)
- Review Section
  
  Transformative Research Areas, Section (II)
- Research Institution
  Kyushu University
Resolution of orbifold singularities and its phenomenological applicationPrincipal Investigator
- Principal Investigator
  
  Otsuka Hajime
- Project Period (FY)
  2020 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Kyushu University
  High Energy Accelerator Research Organization
Phenomenological studies of axion and CP violationPrincipal Investigator
- Principal Investigator
  
  Otsuka Hajime
- Project Period (FY)
  2017 – 2018
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  Waseda University

All 2024 2023 2022 2021 2020 2019 2018 2017

All Journal Article Presentation Book

[Book] 数理科学 2021年 1月号2021
- Author(s)
  大塚啓
- Total Pages
  7
- Publisher
  サイエンス社
- Data Source
  KAKENHI-PROJECT-20K14477
[Journal Article] Flux Landscape with enhanced symmetry not on SL(2, Z) elliptic points2024
- Author(s)
  Ishiguro Keiya、Kai Takafumi、Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2024 Issue: 2 Pages: 1-49
- DOI
  10.1007/jhep02(2024)099
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K03375, KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-22KJ1426, KAKENHI-PUBLICLY-23H04512
[Journal Article] Sequestered string models imply split supersymmetry2024
- Author(s)
  Cicoli Michele、Cotellucci Alessandro、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2024 Issue: 1 Pages: 059-059
- DOI
  10.1007/jhep01(2024)059
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PUBLICLY-23H04512
[Journal Article] Upper bound on the Atiyah-Singer index from tadpole cancellation2024
- Author(s)
  Ishiguro Keiya、Kai Takafumi、Nishimura Satsuki、Otsuka Hajime、Takeuchi Maki
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2024 Issue: 1 Pages: 200-200
- DOI
  10.1007/jhep01(2024)200
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-22KJ2238, KAKENHI-PUBLICLY-23H04512
[Journal Article] Modular flavor models with positive modular weights: a new lepton model building2024
- Author(s)
  Kobayashi Tatsuo、Nomura Takaaki、Okada Hiroshi、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2024 Issue: 1 Pages: 1-22
- DOI
  10.1007/jhep01(2024)121
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K03375, KAKENHI-PROJECT-20K14477, KAKENHI-PUBLICLY-23H04512
[Journal Article] Full higher-dimensional analysis of moduli oscillation and radiation in expanding universe2023
- Author(s)
  Otsuka Hajime、Sakamura Yutaka
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2023 Issue: 5 Pages: 231-231
- DOI
  10.1007/jhep05(2023)231
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477
[Journal Article] Moduli inflation from modular flavor symmetries2023
- Author(s)
  Abe Yoshihiko、Higaki Tetsutaro、Kaneko Fumiya、Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2023 Issue: 6 Pages: 187-187
- DOI
  10.1007/jhep06(2023)187
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K03601, KAKENHI-PROJECT-20K14477
[Journal Article] Generalized matter parities from finite modular symmetries2023
- Author(s)
  Kobayashi Tatsuo、Nishimura Satsuki、Otsuka Hajime、Tanimoto Morimitsu、Yamamoto Kei
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: 2023 Issue: 4
- DOI
  10.1093/ptep/ptad041
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477
[Journal Article] Index theorem on magnetized blow-up manifold of T^2/Z_N2023
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime、Sakamoto Makoto、Takeuchi Maki、Tatsuta Yoshiyuki、Uchida Hikaru
- Journal Title
  
  Physical Review D
  
  Volume: 107 Issue: 7 Pages: 075032-075032
- DOI
  10.1103/physrevd.107.075032
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22KJ2238, KAKENHI-PROJECT-23K03416, KAKENHI-PROJECT-20K14477
[Journal Article] Exploring the flavor structure of quarks and leptons with reinforcement learning2023
- Author(s)
  Nishimura Satsuki、Miyao Coh、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2023 Issue: 12 Pages: 021-021
- DOI
  10.1007/jhep12(2023)021
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PUBLICLY-23H04512
[Journal Article] Remark on modular weights in low-energy effective field theory from type II string theory2023
- Author(s)
  Kikuchi Shota、Kobayashi Tatsuo、Nasu Kaito、Otsuka Hajime、Takada Shohei、Uchida Hikaru
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2023 Issue: 4 Pages: 001-021
- DOI
  10.1007/jhep04(2023)003
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-20J20388, KAKENHI-PROJECT-22KJ0047
[Journal Article] Flavor, CP and metaplectic modular symmetries in Type IIB chiral flux vacua2023
- Author(s)
  Ishiguro Keiya、Kai Takafumi、Okada Hiroshi、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2023 Issue: 12 Pages: 136-136
- DOI
  10.1007/jhep12(2023)136
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-22KJ1426, KAKENHI-PUBLICLY-23H04512
[Journal Article] Modular symmetry in the SMEFT2022
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime、Tanimoto Morimitsu、Yamamoto Kei
- Journal Title
  
  Physical Review D
  
  Volume: 105 Issue: 5 Pages: 055022-055022
- DOI
  10.1103/physrevd.105.055022
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-21K13923
[Journal Article] Residual flavor symmetry breaking in the landscape of modular flavor models2022
- Author(s)
  Ishiguro Keiya、Okada Hiroshi、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2022 Issue: 9 Pages: 001-029
- DOI
  10.1007/jhep09(2022)072
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-22KJ1426
[Journal Article] Lepton flavor violation, lepton (g - 2)μ, e and electron EDM in the modular symmetry2022
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime、Tanimoto Morimitsu、Yamamoto Kei
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2022 Issue: 8 Pages: 001-033
- DOI
  10.1007/jhep08(2022)013
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-21K13923
[Journal Article] Pseudo-Nambu-Goldstone dark matter from non-Abelian gauge symmetry2022
- Author(s)
  Otsuka Hajime、Shimomura Takashi、Tsumura Koji、Uchida Yoshiki、Yamatsu Naoki
- Journal Title
  
  Physical Review D
  
  Volume: 106 Issue: 11 Pages: 1-16
- DOI
  10.1103/physrevd.106.115033
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03620, KAKENHI-PROJECT-22K03622, KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-18K03651, KAKENHI-PLANNED-18H05543
[Journal Article] Phenomenological implications on a hidden sector from the festina lente bound2022
- Author(s)
  Ban Kayoung、Cheong Dhong Yeon、Okada Hiroshi、Otsuka Hajime、Park Jong-Chul、Park Seong Chan
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: 2023 Issue: 1
- DOI
  10.1093/ptep/ptac176
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Journal Article] Spacetime evolution during moduli stabilization in radiation dominated era beyond 4D effective theory2022
- Author(s)
  Otsuka Hajime、Sakamura Yutaka
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2022 Issue: 8 Pages: 001-028
- DOI
  10.1007/jhep08(2022)120
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477
[Journal Article] Symplectic modular symmetry in heterotic string vacua: flavor, CP, and R-symmetries2022
- Author(s)
  Ishiguro Keiya、Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2022 Issue: 1 Pages: 001-020
- DOI
  10.1007/jhep01(2022)020
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-22KJ1426
[Journal Article] 4D modular flavor symmetric models inspired by a higher-dimensional theory2022
- Author(s)
  Kikuchi Shota、Kobayashi Tatsuo、Otsuka Hajime、Tanimoto Morimitsu、Uchida Hikaru、Yamamoto Kei
- Journal Title
  
  Physical Review D
  
  Volume: 106 Issue: 3 Pages: 035001-035001
- DOI
  10.1103/physrevd.106.035001
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-20J20388, KAKENHI-PROJECT-22KJ0047
[Journal Article] On stringy origin of minimal flavor violation2022
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  The European Physical Journal C
  
  Volume: 82 Issue: 1 Pages: 001-006
- DOI
  10.1140/epjc/s10052-022-09986-4
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477
[Journal Article] Modular symmetry of soft supersymmetry breaking terms2022
- Author(s)
  Kikuchi Shota、Kobayashi Tatsuo、Nasu Kaito、Otsuka Hajime、Takada Shohei、Uchida Hikaru
- Journal Title
  
  Progress of Theoretical and Experimental Physics
  
  Volume: 2022 Issue: 12
- DOI
  10.1093/ptep/ptac152
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PROJECT-20J20388, KAKENHI-PROJECT-22KJ0047
[Journal Article] Sharpening the boundaries between flux landscape and swampland by tadpole charge2021
- Author(s)
  Ishiguro Keiya、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2021 Issue: 12 Pages: 001-017
- DOI
  10.1007/jhep12(2021)017
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477
[Journal Article] Landscape of modular symmetric flavor models2021
- Author(s)
  Ishiguro Keiya、Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2021 Issue: 3 Pages: 001-036
- DOI
  10.1007/jhep03(2021)161
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PUBLICLY-19H04605, KAKENHI-PROJECT-19J00664
[Journal Article] Small flux superpotential in F-theory compactifications2021
- Author(s)
  Honma Yoshinori、Otsuka Hajime
- Journal Title
  
  Physical Review D
  
  Volume: 103 Issue: 12 Pages: 126022-126022
- DOI
  10.1103/physrevd.103.126022
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477
[Journal Article] Hierarchical structure of physical Yukawa couplings from matter field Kaehler metric2021
- Author(s)
  Ishiguro Keiya、Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2021 Issue: 7 Pages: 001-025
- DOI
  10.1007/jhep07(2021)064
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477
[Journal Article] Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes2020
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  Physical Review D
  
  Volume: 102 Issue: 2 Pages: 026004-026004
- DOI
  10.1103/physrevd.102.026004
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PUBLICLY-19H04605, KAKENHI-PROJECT-19J00664
[Journal Article] Modular symmetry by orbifolding magnetized T2×T2: realization of double cover of ΓN2020
- Author(s)
  Kikuchi Shota、Kobayashi Tatsuo、Otsuka Hajime、Takada Shintaro、Uchida Hikaru
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2020 Issue: 11 Pages: 001-027
- DOI
  10.1007/jhep11(2020)101
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K14477, KAKENHI-PUBLICLY-19H04605, KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20J20388
[Journal Article] Affleck-Dine baryogenesis in the SUSY Dine-Fischler-Srednicki-Zhitnitsky axion model without R parity2019
- Author(s)
  Akita Kensuke、Otsuka Hajime
- Journal Title
  
  Physical Review D
  
  Volume: 99 Issue: 5 Pages: 055035-055035
- DOI
  10.1103/physrevd.99.055035
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14303
[Journal Article] Radiative Kaehler moduli stabilization2018
- Author(s)
  Kobayashi Tatsuo、Omoto Naoya、Otsuka Hajime、Tatsuishi Takuya H.
- Journal Title
  
  Physical Review D
  
  Volume: 「印刷中」
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14303
[Journal Article] SO(32) heterotic standard model vacua in general Calabi-Yau compactifications2018
- Author(s)
  Otsuka Hajime、Takemoto Kenta
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 2018 Issue: 11 Pages: 0-23
- DOI
  10.1007/jhep11(2018)034
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14303
[Journal Article] SO(32) heterotic line bundle models2018
- Author(s)
  Otsuka Hajime
- Journal Title
  
  Journal of High Energy Physics
  
  Volume: 「印刷中」
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14303
[Journal Article] Supersymmetry preserving and breaking degenerate vacua, and radiative moduli stabilization2017
- Author(s)
  Kobayashi Tatsuo、Omoto Naoya、Otsuka Hajime、Tatsuishi Takuya H.
- Journal Title
  
  Physical Review D
  
  Volume: 96 Issue: 4
- DOI
  10.1103/physrevd.96.046004
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14303, KAKENHI-PUBLICLY-17H05395, KAKENHI-PROJECT-26247042
[Journal Article] On the flux vacua in F-theory compactifications2017
- Author(s)
  Honma Yoshinori、Otsuka Hajime
- Journal Title
  
  Physics Letters B
  
  Volume: 774 Pages: 225-228
- DOI
  10.1016/j.physletb.2017.09.062
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Modular forms and hierarchical Yukawa couplings in heterotic Calabi-Yau compactifications2024
- Author(s)
  大塚啓
- Organizer
  "Particle Physics and Cosmology from String Compactification" 2nd meeting
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Sequestered String Models imply Split Supersymmetry2024
- Author(s)
  大塚啓
- Organizer
  日本物理学会2024年春季大会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Sequestered String Models imply Split Supersymmetry2024
- Author(s)
  大塚啓
- Organizer
  日本物理学会2024年春季大会
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Modular forms and hierarchical Yukawa couplings in heterotic Calabi-Yau compactifications2024
- Author(s)
  Hajime Otsuka
- Organizer
  "Particle Physics and Cosmology from String Compactification" 2nd meeting
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Upper bound on the Atiyah-Singer index from tadpole cancellation2023
- Author(s)
  大塚啓
- Organizer
  日本物理学会第78回年次大会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Open challenges for string phenomenology2023
- Author(s)
  Hajime Otsuka
- Organizer
  Particle Physics and Cosmology from String Compactification
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] 高次元理論におけるモジュライ安定化機構と時空の発展2023
- Author(s)
  大塚啓
- Organizer
  第128回日本物理学会九州支部例会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Flavor, CP and Modular Symmetries from the top down and the bottom up2023
- Author(s)
  Hajime Otsuka
- Organizer
  KEK Theory Meeting on Particle Physics Phenomenology (KEK-PH2023)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Upper bound on the Atiyah-Singer index from tadpole cancellation2023
- Author(s)
  Hajime Otsuka
- Organizer
  場の理論と弦理論 2023
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Sequestered String Models imply Split Supersymmetry2023
- Author(s)
  Hajime Otsuka
- Organizer
  KEK Theory Workshop 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Sequestered String Models imply Split Supersymmetry2023
- Author(s)
  大塚啓
- Organizer
  第129回日本物理学会九州支部例会
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Sequestered String Models imply Split Supersymmetry2023
- Author(s)
  大塚啓
- Organizer
  第129回日本物理学会九州支部例会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Flavor, CP and Modular Symmetries from the top down and the bottom up2023
- Author(s)
  Hajime Otsuka
- Organizer
  KEK Theory Meeting on Particle Physics Phenomenology (KEK-PH2023)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Upper bound on the Atiyah-Singer index from tadpole cancellation2023
- Author(s)
  大塚啓
- Organizer
  場の理論と弦理論 2023
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Upper bound on the Atiyah-Singer index from tadpole cancellation2023
- Author(s)
  Hajime Otsuka
- Organizer
  String phenomenology 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Modular symmetry in the string EFT2023
- Author(s)
  大塚啓
- Organizer
  Kagoshima Workshop on Particles, Fields and Strings 2023
- Invited
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Discrete symmetries in Type IIB MSSM flux vacua2023
- Author(s)
  大塚啓
- Organizer
  日本物理学会2023年春季大会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Open challenges for string phenomenology2023
- Author(s)
  大塚啓
- Organizer
  Particle Physics and Cosmology from String Compactification
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Upper bound on the Atiyah-Singer index from tadpole cancellation2023
- Author(s)
  大塚啓
- Organizer
  日本物理学会第78回年次大会
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Upper bound on the Atiyah-Singer index from tadpole cancellation2023
- Author(s)
  Hajime Otsuka
- Organizer
  String phenomenology 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PUBLICLY-23H04512
[Presentation] Sequestered String Models imply Split Supersymmetry2023
- Author(s)
  Hajime Otsuka
- Organizer
  KEK Theory Workshop 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] 機械学習を用いた弦理論の真空構造解明2023
- Author(s)
  大塚啓
- Organizer
  数理・データサイエンスに関する教育・研究支援プログラム　研究成果発表会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Modular flavor symmetry in the string EFT2022
- Author(s)
  Hajime Otsuka
- Organizer
  Recent development of modular flavor symmetry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Modular symmetry in the SMEFT2022
- Author(s)
  Hajime Otsuka
- Organizer
  KEK-PH 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] 弦理論から迫るフレーバーとCPの物理2022
- Author(s)
  大塚啓
- Organizer
  日本物理学会2022年秋季大会シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Modular flavor symmetry in the string EFT2022
- Author(s)
  Hajime Otsuka
- Organizer
  Bethe Forum “Modular Flavor Symmetries”
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Hierarchical structure of physical Yukawa couplingsfrom matter field Kaehler metric2022
- Author(s)
  Hajime Otsuka
- Organizer
  KEK-TH 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Sharpening the Boundaries Between Flux Landscape and Swampland by Tadpole Charge2022
- Author(s)
  大塚啓
- Organizer
  場の理論と弦理論2022
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] モジュラー対称性に基づくフレーバー模型のランドスケープによる補正2022
- Author(s)
  大塚啓
- Organizer
  日本物理学会2022年秋季大会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Stringy Origin of Minimal Flavor Violation2021
- Author(s)
  大塚啓
- Organizer
  日本物理学会2021年秋季大会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Stringy Origin of Minimal Flavor Violation2021
- Author(s)
  大塚啓
- Organizer
  素粒子物理学の進展２０２１
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Symplectic modular symmetry in heterotic string vacua: flavor, CP, and R-symmetries2021
- Author(s)
  Hajime Otsuka
- Organizer
  Asia-Pacific Workshop on Particle Physics and Cosmology 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Stringy origin of modular flavor symmetry and spontaneous CP violation2021
- Author(s)
  Hajime Otsuka
- Organizer
  SUSY 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Small flux superpotential in F-theory compactifications2021
- Author(s)
  Hajime Otsuka
- Organizer
  Dark World to Swampland 2021, The 6th IBS-IFT-MultiDark Workshop
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Stringy Origin of Minimal Flavor Violation2021
- Author(s)
  Hajime Otsuka
- Organizer
  Recent development of flavor symmetry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Stringy Origin of Minimal Flavor Violation2021
- Author(s)
  大塚啓
- Organizer
  Flavor Physics Workshop 2021
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Spontaneous CP violation and symplectic modular symmetry in Calabi-Yau compactifications2021
- Author(s)
  大塚啓
- Organizer
  日本物理学会第76回年次大会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Small flux superpotential in F-theory compactifications2021
- Author(s)
  Hajime Otsuka
- Organizer
  KEK Theory Workshop 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Hidden structures in the landscape of heterotic line bundle models2021
- Author(s)
  Hajime Otsuka
- Organizer
  Strings and Fields 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Spontaneous CP violation and symplectic modular symmetry in Calabi-Yau compactifications2020
- Author(s)
  Hajime Otsuka
- Organizer
  Strings and Fields 2020
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Hidden structures in the landscape of heterotic line bundle models2020
- Author(s)
  Hajime Otsuka
- Organizer
  KEK Theory Workshop 2020
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Deep learning and k-means clustering in heterotic string vacua with line bundles2020
- Author(s)
  大塚啓
- Organizer
  日本物理学会2020年秋季大会
- Data Source
  KAKENHI-PROJECT-20K14477
[Presentation] Heterotic Stringy Corrections to Metrics of Toroidal Orbifolds and Their Resolutions2019
- Author(s)
  大塚啓、Leung Pompey
- Organizer
  日本物理学会第74回年次大会
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Affleck-Dine baryogenesis in the SUSY DFSZ axion model without R-parity2019
- Author(s)
  秋田謙介、大塚啓
- Organizer
  日本物理学会第74回年次大会
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Hypercharge Flux in SO(32) Heterotic String2018
- Author(s)
  竹本賢太、大塚啓
- Organizer
  日本物理学会2018年秋季大会
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Radiative Kaehler moduli stabilization2018
- Author(s)
  大塚啓, 小林達夫, 大本直哉, 立石卓也
- Organizer
  日本物理学会第73回年次大会
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Hypercharge flux in SO(32) heterotic string theory2018
- Author(s)
  Otsuka Hajime
- Organizer
  素粒子物理学の進展2018
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] On the Flux Vacua in F-theory Compactifications2018
- Author(s)
  本間良則, 大塚啓
- Organizer
  日本物理学会第73回年次大会
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Axion decay constants at special points in type II string theory2018
- Author(s)
  Otsuka Hajime, Honda Masaki, Oikawa Akane
- Organizer
  Mini-workshop on inflation, mirror symmetry and F-theory
- Invited
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Hypercharge flux in SO(32) heterotic string theory2018
- Author(s)
  Otsuka Hajime
- Organizer
  Strings and fields 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] The impact of QCD axion on Affleck-Dine baryogenesis2018
- Author(s)
  秋田謙介, 大塚啓
- Organizer
  日本物理学会第73回年次大会
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] On the vacuum structure of F-theory compactifications2018
- Author(s)
  Otsuka Hajime
- Organizer
  KEK Theory Workshop 2018
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] SO(32) heterotic line bundle models2017
- Author(s)
  Otsuka Hajime
- Organizer
  Strings and Fields 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] SO(32) heterotic line bundle models2017
- Author(s)
  Otsuka Hajime
- Organizer
  日本物理学会 2017年秋季大会
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] On the vacuum structure of F-theory compactifications2017
- Author(s)
  Otsuka Hajime, Honma Yoshinori
- Organizer
  PASCOS 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Three-generation models in SO(32) heterotic string theory2017
- Author(s)
  Otsuka Hajime
- Organizer
  Summer Institute 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Radiative Kaehler moduli stabilization2017
- Author(s)
  Otsuka Hajime, Kobayashi Tatsuo, Omoto Naoya, Tatsuishi Takuya H.
- Organizer
  Focus Meeting: new perspectives on light particles
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] On the Flux Vacua in F-theory Compactifications2017
- Author(s)
  Otsuka Hajime, Honma Yoshinori
- Organizer
  Exceptional Groups as Symmetries of Nature
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] On the Vacuum Structure of F-theory Compactifications2017
- Author(s)
  Otsuka Hajime, Honma Yoshinori
- Organizer
  String Phenomenology 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14303
[Presentation] Supersymmetry preserving and breaking degenerate vacua, and radiative moduli stabilization2017
- Author(s)
  大本直哉, 小林達夫, 大塚啓, 立石卓也
- Organizer
  日本物理学会 2017年秋季大会
- Data Source
  KAKENHI-PROJECT-17K14303

1. 檜垣徹太郎

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
2. 小林達夫

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
3. 津村浩二

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Otsuka Hajime 大塚 啓

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機械学習で迫るフレーバー構造およびCP対称性の破れPrincipal Investigator

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機械学習を用いた弦の有効理論の構築Principal Investigator

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Resolution of orbifold singularities and its phenomenological applicationPrincipal Investigator

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Phenomenological studies of axion and CP violationPrincipal Investigator

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[Book] 数理科学 2021年 1月号2021

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[Journal Article] Flux Landscape with enhanced symmetry not on SL(2, Z) elliptic points2024

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[Journal Article] Sequestered string models imply split supersymmetry2024

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[Journal Article] Upper bound on the Atiyah-Singer index from tadpole cancellation2024

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[Journal Article] Modular flavor models with positive modular weights: a new lepton model building2024

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[Journal Article] Full higher-dimensional analysis of moduli oscillation and radiation in expanding universe2023

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[Journal Article] Moduli inflation from modular flavor symmetries2023

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[Journal Article] Generalized matter parities from finite modular symmetries2023

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[Journal Article] Index theorem on magnetized blow-up manifold of T^2/Z_N2023

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[Journal Article] Exploring the flavor structure of quarks and leptons with reinforcement learning2023

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[Journal Article] Remark on modular weights in low-energy effective field theory from type II string theory2023

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Otsuka Hajime 大塚啓