Otsuka Hajime 大塚啓

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大塚啓オオツカハジメ

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Researcher Number	80777988
Other IDs	https://orcid.org/0000-0002-0791-6180
Affiliation (Current)	2023: 九州大学, 理学研究院, 助教
Affiliation (based on the past Project Information) *help	2023: 九州大学, 理学(系)研究科(研究院), 助教 2021: 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 Particle/Nuclear/Cosmic ray/Astro physics / Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics / Transformative Research Areas, Section (II)
Keywords	Principal Investigator CP対称性の破れ / 超弦理論 / アクシオン / モジュライ / ブローアップ / モジュラー対称性 / 素粒子現象論 / スワンプランド / 素粒子的宇宙論

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
オービフォールド特異点の解消とその現象論的応用Principal Investigator
- Principal Investigator
  
  大塚啓
- 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 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] Modular symmetry in the SMEFT2022
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime、Tanimoto Morimitsu、Yamamoto Kei
- Journal Title
  
  Phys.Rev.D
  
  Volume: 105 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] 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 Pages: 001-020
- DOI
  10.1007/jhep01(2022)020
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477
[Journal Article] On stringy origin of minimal flavor violation2022
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  The European Physical Journal C
  
  Volume: 82 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] 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 Pages: 001-017
- DOI
  10.1007/jhep12(2021)017
- 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 Pages: 001-025
- DOI
  10.1007/jhep07(2021)064
- 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 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 Pages: 126022-126022
- DOI
  10.1103/physrevd.103.126022
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19J00664, KAKENHI-PROJECT-20K14477
[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 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] Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes2020
- Author(s)
  Kobayashi Tatsuo、Otsuka Hajime
- Journal Title
  
  Physical Review D
  
  Volume: 102 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] 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 Pages: 055035-055035
- DOI
  10.1103/physrevd.99.055035
- 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 Pages: 0-23
- DOI
  10.1007/jhep11(2018)034
- 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 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 vacuum, and radiative moduli stabilization2017
- Author(s)
  Kobayashi Tatsuo、Omoto Naoya、Otsuka Hajime、Tatsuishi Takuya H.
- Journal Title
  
  Phys. Rev.
  
  Volume: 96
- DOI
  10.1103/physrevd.96.046004
- NAID
  120006346116
- 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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
  Strings and fields 2018
- Int'l Joint Research
- 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] 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] 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
  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] 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] 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] 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. 小林達夫

# of Collaborated Projects: 0 results

# of Collaborated Products: 4 results

Otsuka Hajime 大塚 啓

大塚 啓 オオツカ ハジメ

Research Projects

Research Products

Co-Researchers

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

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

オービフォールド特異点の解消とその現象論的応用Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Phenomenological studies of axion and CP violationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Book] 数理科学 2021年 1月号2021

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] Modular symmetry in the SMEFT2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Symplectic modular symmetry in heterotic string vacua: flavor, CP, and R-symmetries2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On stringy origin of minimal flavor violation2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Sharpening the boundaries between flux landscape and swampland by tadpole charge2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Hierarchical structure of physical Yukawa couplings from matter field Kaehler metric2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Landscape of modular symmetric flavor models2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Small flux superpotential in F-theory compactifications2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Modular symmetry by orbifolding magnetized T2?×?T2: realization of double cover of ΓN2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Challenge for spontaneous CP violation in Type IIB orientifolds with fluxes2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Affleck-Dine baryogenesis in the SUSY Dine-Fischler-Srednicki-Zhitnitsky axion model without R parity2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] SO(32) heterotic standard model vacua in general Calabi-Yau compactifications2018

Author(s)

Otsuka Hajime 大塚啓

大塚啓オオツカハジメ