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Study of flavor physics in gauge-Higgs unification

Research Project

Project/Area Number 24540283
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionOsaka City University (2013-2014)
Keio University (2012)

Principal Investigator

MARU Nobuhito  大阪市立大学, 大学院理学研究科, 准教授 (40448163)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords標準模型を超える物理 / 高次元理論 / ヒッグス粒子 / コライダー物理 / 高次元模型 / フレーバー物理 / ゲージ・ヒッグス / レプトンフレーバーの破れ / 国際情報交換 / ゲージ・ヒッグス統一模型 / 2光子崩壊事象 / アメリカ
Outline of Final Research Achievements

The origin of Higgs particle recently discovered at LHC is still a mystery. Diphoton decay, the Z boson and the photon decay of Higgs boson have been studied in the framework of gauge-Higgs unification where the Higgs particle is identified with the gauge field in higher dimension.
By introducing a color singlet fermion in the bulk, not only the diphoton decay data but also the observed Higgs mass 125 GeV can be explained. It is also pointed out that the lightest Kaluza-Klein particle of the introduced fermion might be a possible candidate of the dark matter.
We have shown that the Z boson and the photon decay of Higgs boson is not affected by the 1-loop quantum corrections. This prediction is very useful to distinguish the models of gauge-Higgs unification from the other models of physics beyond the Standard Model.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (11 results)

All 2015 2014 2013 2012

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 4 results,  Acknowledgement Compliant: 4 results) Presentation (5 results) (of which Invited: 1 results)

  • [Journal Article] 126 GeV Higgs Boson Associated with D-term Triggered Dynamical Supersymmetry Breaking2015

    • Author(s)
      H. Itoyama, N. Maru
    • Journal Title

      Symmetry

      Volume: 7(1) Issue: 1 Pages: 193-205

    • DOI

      10.3390/sym7010193

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Is the 126 GeV Higgs Boson Mass Calculable in Gauge-Higgs Unification?2015

    • Author(s)
      C.S. Lim, N. Maru, T. Miura
    • Journal Title

      Prog. Theoret. Exp. Phys.

      Volume: 2015 Issue: 4 Pages: 43B02-0

    • DOI

      10.1093/ptep/ptv030

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Mass Sum Rule of the Effective Action on Vacua with Broken Rigid N=1 Supersymmetry2015

    • Author(s)
      H. Itoyama, N. Maru
    • Journal Title

      Nucl.Phys. B

      Volume: 893 Pages: 332-345

    • DOI

      10.1016/j.nuclphysb.2015.02.017

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] One-loop radiative correction to Kaluza-Klein masses in S2/Z2 universal extra-dimensional model2014

    • Author(s)
      Nobuhito Maru, T.Nomura and J.Sato
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 8 Issue: 8 Pages: 83B04-0

    • DOI

      10.1093/ptep/ptu113

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Diphoton decay excess and 125 GeV Higgs boson in gauge-Higgs unification2013

    • Author(s)
      Nobuhito Maru and Nobuchika Okada
    • Journal Title

      Physical Review D

      Volume: 87 Issue: 9

    • DOI

      10.1103/physrevd.87.095019

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] H to Z gamma in gauge-Higgs unification2013

    • Author(s)
      Nobuhito Maru and Nobuchika Okada
    • Journal Title

      Physical Review D

      Volume: 88 Issue: 3

    • DOI

      10.1103/physrevd.88.037701

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Higgs Mass in D-Term triggered Dynamical SUSY Breaking2015

    • Author(s)
      丸 信人
    • Organizer
      Sakata Memorial KMI Workshop on "Origin of Mass and Strong Coupling Gauge Theories (SCGT15)"
    • Place of Presentation
      名古屋大学(愛知県・名古屋市)
    • Year and Date
      2015-03-03 – 2015-03-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Collider Signatures of Gauge-Higgs Unification at LHC2015

    • Author(s)
      丸 信人
    • Organizer
      The 2nd Toyama International Workshop on "Higgs as a Probe of New Physics 2015"
    • Place of Presentation
      富山大学(富山県・富山市)
    • Year and Date
      2015-02-11 – 2015-02-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Diphoton Decay Excess and 125 GeV Higgs Boson in Gauge-Higgs Unification2013

    • Author(s)
      丸 信人
    • Organizer
      日本物理学会
    • Place of Presentation
      高知大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Enhancement of diphoton decay and Higgs mass in gauge-Higgs unification2013

    • Author(s)
      丸 信人
    • Organizer
      国際ワークショップ Toward Extra-Dimensions on the Lattice
    • Place of Presentation
      大阪大学
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] ゲージ・ヒッグス統一理論におけるCPの破れ2012

    • Author(s)
      丸 信人
    • Organizer
      日本物理学会
    • Place of Presentation
      京都産業大学
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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