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New physics from dark matter and Higgs

Research Project

Project/Area Number 17K14278
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionKanazawa University

Principal Investigator

Ishiwata Koji  金沢大学, 数物科学系, 准教授 (40754271)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords暗黒物質 / ヒッグス粒子 / 暗黒物質探索実験 / 宇宙線 / 素粒子論的宇宙論 / 素粒子論 / 宇宙論
Outline of Final Research Achievements

The goal of this project is to propose concrete methods to detect dark matter of the Universe by focusing on the scalar sector including Higgs boson of the Standard Model. It was found that the pseudo-Nambu-Goldstone boson dark matter that interact with Higgs is hard detect in the future direct detection experiments, which indicates a new method required. For ultra-heavy dark matter, we simulated all kinds of cosmic-ray particles from dark matter in and outside the Galaxy. Consequently we found the gamma-ray and (anti)neutrino observations are most effective for the search of ultra-heavy dark matter.

Academic Significance and Societal Importance of the Research Achievements

2012年のヒッグス粒子発見により素粒子標準理論は確立したが、その一方で、素粒子標準理論と宇宙開闢時から現在に至る宇宙の進化の歴史との矛盾点は大きな課題として残ったままである。その矛盾点のうちで最も大きな問題の一つが宇宙暗黒物質の存在である。宇宙暗黒物質の正体解明はすなわち、素粒子標準理論を越える新しい理論発見に直結する。そのため世界中で多くの研究者が実験・観測面と理論面から精力的に研究を続けている。本研究は素粒子標準理論においていまだ未知の多いスカラーセクターと暗黒物質との関連性に着目し、その正体解明に向けた新たな探索手法の提案を行うものであり、宇宙進化の謎を解き明かす重要な一役を担った。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (19 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (11 results) (of which Int'l Joint Research: 6 results,  Invited: 4 results) Remarks (1 results)

  • [Int'l Joint Research] University of Amsterdam(オランダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Amsterdam(オランダ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Probing heavy dark matter decays with multi-messenger astrophysical data2020

    • Author(s)
      Koji Ishiwata, Oscar Macias, Shin'ichiro Ando, Makoto Arimoto
    • Journal Title

      JCAP

      Volume: 01 Issue: 01 Pages: 003-003

    • DOI

      10.1088/1475-7516/2020/01/003

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Leptogenesis after superconformal subcritical hybrid inflation2019

    • Author(s)
      Yoshihiro Gunji, Koji Ishiwata
    • Journal Title

      JHEP

      Volume: 09 Issue: 9 Pages: 065-065

    • DOI

      10.1007/jhep09(2019)065

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Superconformal subcritical hybrid inflation2018

    • Author(s)
      Ishiwata Koji
    • Journal Title

      Physics Letters B

      Volume: 782 Pages: 367-371

    • DOI

      10.1016/j.physletb.2018.05.047

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Probing pseudo Nambu-Goldstone boson dark matter at loop level2018

    • Author(s)
      Ishiwata Koji、Toma Takashi
    • Journal Title

      Journal of High Energy Physics

      Volume: 2018 Issue: 12 Pages: 1-1

    • DOI

      10.1007/jhep12(2018)089

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Longitudinal W boson scattering in a light scalar top scenario2017

    • Author(s)
      K. Ishiwata,Y. Yonekura
    • Journal Title

      Physical Review D

      Volume: 96 Issue: 1 Pages: 015009-015009

    • DOI

      10.1103/physrevd.96.015009

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Probing heavy dark matter decays with multi-messenger astrophysical data2020

    • Author(s)
      石渡弘治
    • Organizer
      素粒子現象論研究会2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Phenomenology of superconformal subcritical hybrid inflation2020

    • Author(s)
      Koji Ishiwata
    • Organizer
      Miyazaki Workshop on Particle Physics and Cosmology
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Brief review of direct detection of dark matter2019

    • Author(s)
      Koji Ishiwata
    • Organizer
      2019年度第1回CRC将来計画タウンミーティング
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Leptogenesis in superconformal subcritical hybrid inflation2019

    • Author(s)
      Koji Ishiwata
    • Organizer
      Planck 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Probing heavy dark matter decays with multi-messenger astrophysical data2019

    • Author(s)
      Koji Ishiwata
    • Organizer
      Scalar 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Theoretical improvements in particle dark matter searches2019

    • Author(s)
      Koji Ishiwata
    • Organizer
      Toyama International Symposium on "Particle at the Cosmic Frontier"
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Superconformal Subcritical Hybrid Inflation2018

    • Author(s)
      Koji Ishiwata
    • Organizer
      SUSY2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] インフレーションによるプランクスケール物理探索の可能性2018

    • Author(s)
      Koji Ishiwata
    • Organizer
      質量階層性に対する新しい原理が導く多彩な物理現象とプランクスケールの物理
    • Related Report
      2018 Research-status Report
  • [Presentation] Constraining particle dark matter using local galaxy distribution2017

    • Author(s)
      K. Ishiwata
    • Organizer
      DESY Theory Workshop Fundamental physics in the cosmos: The early, the large and the dark Universe
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Constraining decaying dark matter using gamma rays and local galaxy distribution2017

    • Author(s)
      K. Ishiwata
    • Organizer
      宇宙観測と地上実験から探るダークマター研究の現状と展望
    • Related Report
      2017 Research-status Report
  • [Presentation] Theoretical improvements in particle dark matter searches2017

    • Author(s)
      K. Ishiwata
    • Organizer
      The 3rd Winter Toyama Mini-Workshop on Particle Physics and Cosmology "Basis of the Universe with Revolutionary Ideas 2018"
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] マルチメッセンジャー天文学が宇宙暗黒物質正体解明への手掛かりに

    • URL

      https://www.kanazawa-u.ac.jp/rd/80987

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2022-01-27  

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