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The origin of electroweak symmetry breaking in String Theory

Research Project

Project/Area Number 19K03851
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionTokyo Metropolitan University

Principal Investigator

Kitazawa Noriaki  東京都立大学, 理学研究科, 助教 (20271158)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords弦理論 / Dブレーンの動的性質 / 弦理論における量子補正 / 弦理論における量子効果 / 質量補正 / ハッブル定数問題 / 宇宙のインフレーション / 暖かいインフレーション / ゲージ対称性の自発的破れ / 余剰次元模型 / 宇宙背景放射 / 宇宙背教放射の偏極 / 原始重力波 / 超弦理論 / 超対称性の破れ / Dブレーン / Dブレーンの動力学 / 現理論 / ブレーン動力学 / ローレンツ対称性の破れ / 素粒子質量の起源 / 電弱対称性の自発的破れ
Outline of Research at the Start

電弱対称性の自発的破れは全ての素粒子の質量の起源であり、そのメカニズムの解明は現在の素粒子物理学の最重要課題のひとつである。この問題は場の量子論や弦理論における静的な問題として研究されてきた。すなわち、電弱対称性が自発的に破れた状態が基底状態として実現されるべきであると信じられてきた。この信念のもとでの研究に発展性がないことに鑑み、電弱対称性が自発的に破れた状態は弦理論の動的平衡状態において実現されるという可能性を探求する。これにより、電弱対称性の自発的破れのメカニズムは暗黒物質の起源や宇宙のインフレーションのメカニズムと関連することになる。

Outline of Final Research Achievements

The dynamics of the electroweak gauge symmetry breaking in the standard model of particle physics is unknown yet. Though it has been investigated within the framewark of the quantum field theory, the solution has not been found yet. There have been further effort in String Theory beyond the quantum field theory, but it is still in a mistery. In this research we try to understand the dynamics by considering a dynamical system of D-brane, as a binary star, in String Theory. Though the detailed investigations within the string world sheet theory, it should be concluded that there is no such a possibility. The dynamics of the electroweak gauge symmetry breaking is still in a mistery.

Academic Significance and Societal Importance of the Research Achievements

全ての素粒子の質量の起源である電弱ゲージ対称性の自発的破れのダイナミクスの解明には至らなかったが、本研究の成果である弦理論におけるDブレーンの動的な性質についての理論的な知識や弦理論における量子補正についての理論的な知識は、将来の弦理論研究に資するものである。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (10 results) (of which Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (1 results) Remarks (3 results)

  • [Journal Article] Stringy Threshold Corrections in D-brane Systems2023

    • Author(s)
      Satoshi Iso, Noriaki Kitazawa and Takao Suyama
    • Journal Title

      Physical Review

      Volume: D107 Issue: 12 Pages: 126014-126014

    • DOI

      10.1103/physrevd.107.126014

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inflaton as a pseudo-Nambu-Goldstone boson2023

    • Author(s)
      Noriaki Kitazawa
    • Journal Title

      Physics Letters B

      Volume: 840 Pages: 137846-137846

    • DOI

      10.1016/j.physletb.2023.137846

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reionization process dependence of the ratio of CMB polarization power spectra at low-ell2022

    • Author(s)
      Noriaki Kitazawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2205 Issue: 05 Pages: 016-016

    • DOI

      10.1088/1475-7516/2022/05/016

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gauge Symmetry Restoration by Higgs Condensation in Flux Compactifications on Coset Spaces2022

    • Author(s)
      Satoshi Iso, Noriaki Kitazawa and Takao Suyama
    • Journal Title

      Physical Review D

      Volume: 105 Issue: 4 Pages: 045008-045008

    • DOI

      10.1103/physrevd.105.045008

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Polarization of CMB and possible time dependence of dark energy,2021

    • Author(s)
      Noriaki Kitazawa
    • Journal Title

      Physics of the Dark Universe

      Volume: 35 Pages: 100937-100937

    • DOI

      10.1016/j.dark.2021.100937

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] More on effective potentials for revolving D-branes2020

    • Author(s)
      Iso Satoshi、Kitazawa Noriaki、Ohta Hikaru、Suyama Takao
    • Journal Title

      Journal of High Energy Physics

      Volume: 2020 Issue: 8 Pages: 1-19

    • DOI

      10.1007/jhep08(2020)137

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Polarizations of CMB and the Hubble tension2020

    • Author(s)
      Kitazawa Noriaki
    • Journal Title

      arXiv:2010.12164

      Volume: 2010 Pages: 1-28

    • Related Report
      2020 Research-status Report
  • [Journal Article] A Possibility of Lorentz Violation in the Higgs Sector2020

    • Author(s)
      Satoshi Iso and Noriaki Kitazawa
    • Journal Title

      Modern Physics Letters A

      Volume: 35 Issue: 10 Pages: 2050064-2050064

    • DOI

      10.1142/s0217732320500649

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dynamics of Revolving D-Branes at Short Distances2020

    • Author(s)
      Satoshi Iso, Noriaki Kitazawa, Hikaru Ohta and Takao Suyama
    • Journal Title

      Journal of High Energy Physics

      Volume: 2001 Issue: 1 Pages: 182-182

    • DOI

      10.1007/jhep01(2020)182

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] On CMB B-modes and the Onset of Inflation2019

    • Author(s)
      Noriaki Kitazawa
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 1908 Issue: 08 Pages: 005-005

    • DOI

      10.1088/1475-7516/2019/08/005

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Effective potential for revolving D-branes in superstring theory2019

    • Author(s)
      Hikaru Ohta
    • Organizer
      日本物理学会
    • Related Report
      2019 Research-status Report
  • [Remarks] Home Page of Noriaki Kitazawa

    • URL

      http://chercher.phys.se.tmu.ac.jp

    • Related Report
      2023 Annual Research Report 2021 Research-status Report
  • [Remarks] Home Page of Noriaki Kitazawa

    • URL

      http://chercher.phys.se.tmu.ac.jp/

    • Related Report
      2022 Research-status Report 2020 Research-status Report
  • [Remarks] Home Page of Noriaki Kitazawa

    • URL

      https://chercher.phys.se.tmu.ac.jp

    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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