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Research on phenomenological/cosmological aspects of moduli field in the string theory

Research Project

Project/Area Number 25800169
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

HIGAKI Tetsutaro  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, 博士研究員 (10629059)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords素粒子論 / 素粒子現象論 / 素粒子宇宙論 / 弦理論的現象論
Outline of Final Research Achievements

I have found various possibilities in the early universe through observations of cosmic microwave background. They are consistent with the observations.
In special, I focused on multiple axion (pseudo scalar moduli) fields/particles with various masses. The fields originate from gauge fields in the string theory which is regarded as a candidate of unified theory of natural forces. Here, the gauge fields control forces in the string theory and hence should exist. The axions can provide energy enough to explain the cosmic accelerating expansion in the early universe. Further, a light axions can become the dark matter, which are seeds of galaxies including ours in the universe.

Report

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

    (25 results)

All 2015 2014 2013 Other

All Journal Article (13 results) (of which Peer Reviewed: 13 results,  Open Access: 6 results,  Acknowledgement Compliant: 7 results) Presentation (12 results) (of which Invited: 9 results)

  • [Journal Article] Axion Landscape and Natural Inflation2015

    • Author(s)
      T. Higaki and F. Takahashi
    • Journal Title

      10.1016/j.physletb.2015.03.052

      Volume: 744 Pages: 153-159

    • DOI

      10.1016/j.physletb.2015.03.052

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Elliptic inflation: interpolating from natural inflation to R$^{2}$-inflation2015

    • Author(s)
      T. Higaki and F. Takahashi
    • Journal Title

      JHEP

      Volume: 1503 Issue: 3 Pages: 129-129

    • DOI

      10.1007/jhep03(2015)129

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Natural and Multi-Natural Inflation in Axion Landscape2015

    • Author(s)
      T. Higaki and F. Takahashi,
    • Journal Title

      JHEP

      Volume: 1407 Issue: 7 Pages: 074-074

    • DOI

      10.1007/jhep07(2014)074

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Hidden axion dark matter decaying through mixing with QCD axion and the 3.5 keV X-ray line2014

    • Author(s)
      T. Higaki, N. Kitajima and F. Takahashi
    • Journal Title

      JCAP

      Volume: 12 Issue: 12 Pages: 004-004

    • DOI

      10.1088/1475-7516/2014/12/004

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Axion monodromy inflation with multi-natural modulations2014

    • Author(s)
      Tetsutaro Higaki, Tatsuo Kobayashi, Osamu Seto, Yuya Yamaguchi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 10 Issue: 10 Pages: 025-025

    • DOI

      10.1088/1475-7516/2014/10/025

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Affleck-Dine baryogenesis with R-parity violation2014

    • Author(s)
      檜垣徹太郎、中山和則、齋川賢一、高橋智、山口昌英
    • Journal Title

      Physical Review D

      Volume: 90 Issue: 4 Pages: 0450011-20

    • DOI

      10.1103/physrevd.90.045001

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Neutrinoful Universe2014

    • Author(s)
      T. Higaki, R. Kitano, R. Sato
    • Journal Title

      Journal of High Energy Physics

      Volume: 1407 Issue: 7 Pages: 044-044

    • DOI

      10.1007/jhep07(2014)044

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Multi-Natural Inflation in Supergravity2014

    • Author(s)
      Michael Czerny、 檜垣 徹太郎、高橋 史宜
    • Journal Title

      Journal of High Energy Physics

      Volume: 印刷中

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] The 7 keV axion dark matter and the X-ray line signal2014

    • Author(s)
      Tetsutaro Higaki, Kwang Sik Jeong and Fuminobu Takahashi
    • Journal Title

      Physics Letters B

      Volume: 733 Pages: 25-31

    • DOI

      10.1016/j.physletb.2014.04.007

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Multi-Natural Inflation in Supergravity and BICEP22014

    • Author(s)
      Michael Czerny、 檜垣 徹太郎、高橋 史宜
    • Journal Title

      Physics Letter B

      Volume: 印刷中

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Solving the Tension between High-Scale Inflation and Axion Isocurvature Perturbations2014

    • Author(s)
      檜垣 徹太郎、鄭 光植 (JEONG, Kwang Sik)、高橋 史宜
    • Journal Title

      Physics Letter B

      Volume: 印刷中

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cosmological constraints on axionic dark radiation from axion-photon conversion in the early Universe2013

    • Author(s)
      T. Higaki, K. Nakayama and F. Takahashi
    • Journal Title

      JCAP

      Volume: 1309 Issue: 09 Pages: 30-30

    • DOI

      10.1088/1475-7516/2013/09/030

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Moduli-Induced Axion Problem2013

    • Author(s)
      T. Higaki, K. Nakayama and F. Takahashi
    • Journal Title

      JHEP

      Volume: 1307 Issue: 7 Pages: 5-5

    • DOI

      10.1007/jhep07(2013)005

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] これからのストリング現象論:弦理論的アクシオン2015

    • Author(s)
      檜垣徹太郎
    • Organizer
      これからの弦理論 橋本研 closing 研究会
    • Place of Presentation
      独立行政法人理化学研究所・和光キャンパス(埼玉県和光市)
    • Year and Date
      2015-02-22
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Aligned natural inflation in supergravity2014

    • Author(s)
      檜垣徹太郎
    • Organizer
      Summer Institute 2014
    • Place of Presentation
      富士Calm(山梨県富士吉田市)
    • Year and Date
      2014-08-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] Large field inflation models in string-inspired supergravity2014

    • Author(s)
      檜垣徹太郎
    • Organizer
      東北大学素粒子論セミナー
    • Place of Presentation
      東北大学・青葉山キャンパス(宮城県仙台市)
    • Year and Date
      2014-07-03
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Natural inflation models in string-inspired supergravity2014

    • Author(s)
      檜垣徹太郎
    • Organizer
      カブリ数物連携宇宙機構素粒子論セミナー
    • Place of Presentation
      東京大学・柏キャンパス(千葉県柏市)
    • Year and Date
      2014-06-11
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Supergravity/String cosmologyafter BICEP22014

    • Author(s)
      檜垣徹太郎
    • Organizer
      北海道大学素粒子論セミナー
    • Place of Presentation
      北海道大学(北海道札幌市)
    • Year and Date
      2014-05-16
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Suppressing axion isocurvature perturbation by discrete PQ symmetry

    • Author(s)
      檜垣徹太郎
    • Organizer
      第69回年次大会 物理学会
    • Place of Presentation
      東海大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Axions in string theory

    • Author(s)
      檜垣徹太郎
    • Organizer
      早稲田大学シンポジウム
    • Place of Presentation
      早稲田大学(西早稲田キャンパス)
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Moduli-Induced Axion Problem

    • Author(s)
      檜垣徹太郎
    • Organizer
      Particle Physics and Cosmology Beyond the Higgs Boson
    • Place of Presentation
      東北大学(片平キャンパス)
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Moduli-Induced Axion Problem

    • Author(s)
      檜垣徹太郎
    • Organizer
      String Pheno 2013
    • Place of Presentation
      DESY ハンブルク市、ドイツ連邦共和国
    • Related Report
      2013 Research-status Report
  • [Presentation] Introduction to string phenomenology and Cosmology in LARGE volume string models

    • Author(s)
      檜垣徹太郎
    • Organizer
      KEK 弦と場の理論セミナー
    • Place of Presentation
      高エネルギー加速器研究機構
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Cosmology in LARGE volume string models

    • Author(s)
      檜垣徹太郎
    • Organizer
      京都大学理学部 素粒子論セミナー
    • Place of Presentation
      京都大学理学部(北白川キャンパス)
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Cosmology in LARGE volume string models

    • Author(s)
      檜垣徹太郎
    • Organizer
      東京大学理学部 素粒子論セミナー
    • Place of Presentation
      東京大学理学部(本郷キャンパス)
    • Related Report
      2013 Research-status Report
    • Invited

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Published: 2014-07-25   Modified: 2019-07-29  

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