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Dark matter models and their application to cosmology and collider phenomenology

Research Project

Project/Area Number 26800123
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionThe University of Tokyo

Principal Investigator

Hamaguchi Koichi  東京大学, 大学院理学系研究科(理学部), 准教授 (80431899)

Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords暗黒物質 / 初期宇宙論 / LHC / 超対称性理論
Outline of Final Research Achievements

We proposed ``flaxion model”. This model not only explains the hierarchical flavor structure in the quark and lepton sector (including the neutrino sector), but also solves the strong CP problem as well as the Dark Matter puzzle. Moreover, the model can also explain the inflation and the cosmological baryon asymmetry in the Universe.
We also studied comprehensively the constraints and future prospects of the search for Higgs- and Z-resonant O(10 GeV) neutralino dark matter in supersymmetric models. It was shown that almost all the parameter space of the scenario will be probed complementarily by the collider search and the direct detection experiments.
We also conducted several other theoretical researches on Dark Matter.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (39 results)

All 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (3 results) Journal Article (16 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 16 results,  Open Access: 11 results,  Acknowledgement Compliant: 12 results) Presentation (19 results) (of which Int'l Joint Research: 10 results,  Invited: 17 results) Remarks (1 results)

  • [Int'l Joint Research] National Taiwan Normal University(台湾)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Northwestern University/University of Oklahoma(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Institute for Basic Science (IBS)(韓国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Gravitino/axino as decaying dark matter and cosmological tensions2017

    • Author(s)
      Hamaguchi Koichi、Nakayama Kazunori、Tang Yong
    • Journal Title

      Physics Letters B

      Volume: 772 Pages: 415-419

    • DOI

      10.1016/j.physletb.2017.06.071

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Predictions for the neutrino parameters in the minimal gauged U(1)_{L_mu -L_tau} model2017

    • Author(s)
      K. Asai, K. Hamaguchi and N. Nagata
    • Journal Title

      The European Physical Journal C

      Volume: 77 Issue: 11 Pages: 763-763

    • DOI

      10.1140/epjc/s10052-017-5348-x

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Probing minimal SUSY scenarios in the light of muon g-2 and dark matter2017

    • Author(s)
      M. Endo, K. Hamaguchi, S. Iwamoto and K. Yanagi
    • Journal Title

      Journal of High Energy Physics

      Volume: 1706 Issue: 6 Pages: 031-031

    • DOI

      10.1007/jhep06(2017)031

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Flaxion: a minimal extension to solve puzzles in the standard model2017

    • Author(s)
      Y. Ema, K. Hamaguchi, T. Moroi and K. Nakayama
    • Journal Title

      Journal of High Energy Physics

      Volume: 1701 Issue: 1 Pages: 096-096

    • DOI

      10.1007/jhep01(2017)096

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Affleck-Dine Leptogenesis with Varying Peccei-Quinn Scale2017

    • Author(s)
      K.~J. Bae, H. Baer, K. Hamaguchi and K. Nakayama
    • Journal Title

      Journal of High Energy Physics

      Volume: 1702 Issue: 2 Pages: 017-017

    • DOI

      10.1007/jhep02(2017)017

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Probing the origin of 750 GeV diphoton excess with the precision measurements at the ILC2016

    • Author(s)
      Kyu Jung Bae, Koichi Hamaguchi, Takeo Moroi, Keisuke Yanagi
    • Journal Title

      Phys. Lett. B

      Volume: B759 Pages: 575-582

    • DOI

      10.1016/j.physletb.2016.06.026

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] From the 750 GeV diphoton resonance to multilepton excesses2016

    • Author(s)
      Kyu Jung Bae, Chuan-Ren Chen, Koichi Hamaguchi, Ian Low
    • Journal Title

      Phys.Rev. D

      Volume: 94 Issue: 1 Pages: 015035-015035

    • DOI

      10.1103/physrevd.94.015035

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Models of a 750 GeV quarkonium and the LHC excesses2016

    • Author(s)
      Koichi Hamaguchi, Seng Pei Liew
    • Journal Title

      Phys.Rev. D

      Volume: D94 Pages: 035012-035012

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Diphhoton Excess and Running Couplings2016

    • Author(s)
      K.J. Bae, M. Endo, K. Hamaguchi and T. Moroi
    • Journal Title

      Phys. Lett. B

      Volume: 757 Pages: 493-500

    • DOI

      10.1016/j.physletb.2016.04.031

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Prospects for Higgs- and Z-resonant Neutralino Dark Matter.2016

    • Author(s)
      Koichi Hamaguchi, Kazuya Ishikawa.
    • Journal Title

      Physical Review D

      Volume: 93 Issue: 5 Pages: 055009-055009

    • DOI

      10.1103/physrevd.93.055009

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] How to decontaminate overlapping fat jets.2015

    • Author(s)
      Koichi Hamaguchi, Seng Pei Liew, Martin Stoll.
    • Journal Title

      Physical Review D

      Volume: 92 Issue: 1 Pages: 015012-015012

    • DOI

      10.1103/physrevd.92.015012

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] AMS-02 Antiprotons from Annihilating or Decaying Dark Matter2015

    • Author(s)
      Koichi Hamaguchi, Takeo Moroi, Kazunori Nakayama
    • Journal Title

      Phys.Lett.

      Volume: B747 Pages: 523-528

    • DOI

      10.1016/j.physletb.2015.06.041

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Reconstruction of Vector-like Top Partner from Fully Hadronic Final States2014

    • Author(s)
      Motoi Endo, Koichi Hamaguchi, Kazuya Ishikawa, Martin Stoll
    • Journal Title

      Physical Review D

      Volume: 90 Issue: 5 Pages: 055027-055027

    • DOI

      10.1103/physrevd.90.055027

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Testing the Minimal Direct Gauge Mediation at the LHC2014

    • Author(s)
      Koichi Hamaguchi, Masahiro Ibe, Tsutomu T. Yanagida, Norimi Yokozaki
    • Journal Title

      Physical Review D

      Volume: 90 Issue: 1 Pages: 015027-015027

    • DOI

      10.1103/physrevd.90.015027

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Isospin-Violating Dark Matter with Colored Mediators2014

    • Author(s)
      Koichi Hamaguchi, Seng Pei Liew, Takeo Moroi, Yasuhiro Yamamoto
    • Journal Title

      Journal of High Energy Physics

      Volume: 1405 Issue: 5 Pages: 86-86

    • DOI

      10.1007/jhep05(2014)086

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Complexified Starobinsky inflation in supergravity in the light of recent BICEP2 result2014

    • Author(s)
      濱口幸一、諸井健夫、寺田隆広
    • Journal Title

      Physics Letters B

      Volume: 733 Pages: 305-308

    • DOI

      10.1016/j.physletb.2014.05.006

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Flaxion: a minimal extension to solve puzzles in the standard model2018

    • Author(s)
      Koichi Hamaguchi
    • Organizer
      PACIFIC 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Flaxion: a minimal extension to solve puzzles in the standard model2018

    • Author(s)
      Koichi Hamaguchi
    • Organizer
      Moriond Electroweak 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] チュートリアル講演 二重ベータ崩壊 + レプトジェネシス2017

    • Author(s)
      濱口幸一
    • Organizer
      「宇宙の歴史をひもとく地下素粒子原子核研究」 2017年領域研究会(岡山大学)
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Flaxion: a minimal extension to solve puzzles in the standard model2017

    • Author(s)
      Koichi Hamaguchi
    • Organizer
      IBS Conference on Dark World
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Flaxion: a minimal extension to solve puzzles in the standard model2017

    • Author(s)
      濱口幸一
    • Organizer
      KEK-PH 2017
    • Place of Presentation
      KEK, つくば、茨城県
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Beyond the Standard Model,2016

    • Author(s)
      濱口幸一
    • Organizer
      The 22nd Vietnam School of Physics (VSOP-22)
    • Place of Presentation
      Quy Nhon, Vietnam
    • Year and Date
      2016-09-10
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Diphoton Excess and Running Coupling Constant2016

    • Author(s)
      濱口幸一
    • Organizer
      Beyond the Standard Model in Okinawa 2016
    • Place of Presentation
      沖縄科学技術大学院大学(沖縄県国頭郡)
    • Year and Date
      2016-03-08
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] レプトジェネシスおよび0ν2β発見時の右巻きニュートリノへの質量制限などについて2016

    • Author(s)
      濱口幸一
    • Organizer
      第一回A班主催若手研究会
    • Place of Presentation
      大阪大学(大阪府吹田市)
    • Year and Date
      2016-02-23
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Probing the origin of the 750 GeV diphoton excess with the precision measurements at the ILC2016

    • Author(s)
      濱口幸一
    • Organizer
      ECFA-LC 2016
    • Place of Presentation
      Santander, Spain
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] LHCの最新結果を踏まえた TeVコライダーによる新物理探索2016

    • Author(s)
      濱口幸一
    • Organizer
      日本物理学会
    • Place of Presentation
      宮崎大学(宮崎県 宮崎市)
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 新物理 直接探索2016

    • Author(s)
      濱口幸一
    • Organizer
      Flavor Physics Workshop 2016
    • Place of Presentation
      岩室温泉ゆもとや(新潟県 新潟市)
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] SUSY 今後の展望 やっぱりSUSYは軽い2015

    • Author(s)
      濱口幸一
    • Organizer
      新学術領域研究会 テラスケール2015 先端加速器LHCが切り拓くテラスケールの素粒子物理学
    • Place of Presentation
      東京工業大学大岡山キャンパス(東京都目黒区)
    • Year and Date
      2015-12-22
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Neutrinoless double beta decay and Leptogenesis2015

    • Author(s)
      濱口幸一
    • Organizer
      IBS-PNU Joint Workshop on Particle Physics, String Theory and Cosmology
    • Place of Presentation
      釜山, 韓国
    • Year and Date
      2015-12-03
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Neutrinoless double beta decay and Leptogenesis2015

    • Author(s)
      濱口幸一
    • Organizer
      Particle Cosmology and beyond 2015
    • Place of Presentation
      金沢アートホール(石川県金沢市)
    • Year and Date
      2015-11-17
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ダブルベータ崩壊とレプトジェネシスとHiggs- and Z-resonant neutralino DM2015

    • Author(s)
      濱口幸一
    • Organizer
      基研研究会 素粒子物理学の進展2015
    • Place of Presentation
      基礎物理学研究所(京都府京都市)
    • Year and Date
      2015-09-18
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Prospects for Higgs- and Z-resonant neutralino dark matter2015

    • Author(s)
      濱口幸一
    • Organizer
      Anticipating Discoveries: LHC14 and Beyond
    • Place of Presentation
      Munich, Germany.
    • Year and Date
      2015-07-15
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ダブルベータ崩壊への期待2015

    • Author(s)
      濱口幸一
    • Organizer
      「宇宙の歴史をひもとく地下素粒子原子核研究」2015年領域研究会
    • Place of Presentation
      神戸大学(兵庫県神戸市)
    • Year and Date
      2015-05-16
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] SUSY Dark Matter (after Higgs discovery)2015

    • Author(s)
      濱口幸一
    • Organizer
      Dark Matter: Astrophysical probes, Laboratory test, Theory aspects
    • Place of Presentation
      Munich Institute for Astro- and Particle Physics (MIAPP), Munich, Germany
    • Year and Date
      2015-02-02 – 2015-02-27
    • Related Report
      2014 Research-status Report
  • [Presentation] もしも Dark Matter の兆候が見えたら・・・ SUSY の場合2014

    • Author(s)
      濱口幸一
    • Organizer
      第2回 松江現象論研究会
    • Place of Presentation
      島根県民会館
    • Year and Date
      2014-11-28
    • Related Report
      2014 Research-status Report
  • [Remarks] 浜口幸一のホームページ

    • URL

      http://www-hep.phys.s.u-tokyo.ac.jp/~hama/welcome.html

    • Related Report
      2014 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2022-02-22  

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