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A unified study of the phase structure in the intermediate baryon density regime and its applications to neutron star physics

Research Project

Project/Area Number 24540280
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 InstitutionSaga University

Principal Investigator

TACHIBANA Motoi  佐賀大学, 工学(系)研究科(研究院), 准教授 (30404122)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords中性子星 / クォーク / 素粒子 / 国際情報交換
Outline of Final Research Achievements

Neutron star has been interesting to many physicists for a long time, since it has many interesting and unknown properties such as the rapid rotation and huge magnetic field as well as the high density profile. Moreover, the study of neutron stars is an essential research subject, which is related to the understanding of mechanism of the supernova explosion, creation of heavy elements like gold, the gravitational wave radiation and matter state at high density. I studied this issue mainly from particle physics side. I obtained several results such as the construction of equations describing the mass and radius of the star, the relation between huge magnetic field and chiral symmetry which is an important property for elementary particles, and dark matter capture in neutron stars. I reported these in various workshops, meetings and conferences as well as the scientific journals.

Report

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

    (8 results)

All 2014 2013 2012

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Holographic cold nuclear matter and neutron star2014

    • Author(s)
      K. Ghoroku, K. Kubo, M. Tachibana and F. Toyoda
    • Journal Title

      International Journal of Modern Physics A

      Volume: 29 Issue: 10 Pages: 1450060-1450060

    • DOI

      10.1142/s0217751x14500602

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Renormalized vs normalized chiral transition in a magnetic background2013

    • Author(s)
      M. Ruggieri, M. Tachibana and V. Greco
    • Journal Title

      Journal of High Energy Physics

      Volume: 07 Pages: 165-165

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Holographic cold nuclear matter as dilute instanton gas2013

    • Author(s)
      K. Ghoroku, K. Kubo, M. Tachibana, T. Taminato and F. Toyoda
    • Journal Title

      Physical Review D

      Volume: XXXX

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mutual friction in color-flavor locked quark matter2012

    • Author(s)
      Motoi Tachibana
    • Journal Title

      AIP Conference Proceedings

      Volume: 1492 Pages: 269-273

    • Related Report
      2012 Research-status Report
  • [Presentation] Dark matter capture in neutron stars with exotic phases2014

    • Author(s)
      Motoi Tachibana and Tetsuo Hatsuda
    • Organizer
      The INT workshop "Nuclear Aspects of Dark Matter Searches"
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2014-12-08 – 2014-12-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] Dark matter capture in neutron stars with exotic phases2014

    • Author(s)
      Motoi Tachibana
    • Organizer
      Quarks and Compact Stars 2014 (QCS2014)
    • Place of Presentation
      Peking, China
    • Year and Date
      2014-10-20 – 2014-10-22
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Dark matter capture in neutron stars with exotic phases2013

    • Author(s)
      Motoi Tachibana and Marco Ruggieri
    • Organizer
      International conference, Baryons2013
    • Place of Presentation
      Glasgow, Great Britain
    • Related Report
      2013 Research-status Report
  • [Presentation] Mutual friction in color-flavor locked quark matter2012

    • Author(s)
      Motoi Tachibana
    • Organizer
      International workshop, QCD@Work2012
    • Place of Presentation
      Lecce, Italy
    • Related Report
      2012 Research-status Report

URL: 

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

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