• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2016 Fiscal Year Annual Research Report

A theoretical extension of the method for nuclear potentails in lattice QCD and its applications

Research Project

Project/Area Number 25287046
Research InstitutionKyoto University

Principal Investigator

青木 慎也  京都大学, 基礎物理学研究所, 教授 (30192454)

Project Period (FY) 2013-04-01 – 2017-03-31
Keywords核力ポテンシャル / 格子QCD / N体散乱 / H粒子 / テトラクォーク / 非弾性散乱 / 閾値 / S行列
Outline of Annual Research Achievements

本研究の目的は、研究代表者らによって提案されて成功を収めている格子QCDによる核力ポテンシャルの導出方法を理論的に考察し、その応用の可能性を探求することである。具体的な目標は以下である。
(1)N体の南部・ベーテ・サルペータ(NBS)波動関数が散乱S行列の情報を持つことを示し、その具体的な形を決める。
(2)ポテンシャル法を非弾性散乱の場合に拡張し、エネルギーに依存しない非局所ポテンシャルが構成できることを示す。
(3)ポテンシャルの方法をハドロンの弱い相互作用による崩壊現象に拡張する。
(4)上記の拡張された方法を用いて、格子QCDによる具体的な計算を行う。
昨年度までに、(1),(2)の目標に関する研究はほぼ終了した。また、昨年度は、H粒子と呼ばれる新規な束縛状態が現れる可能性のあるS(ストレンジネス)=-2の2体バリオン系のポテンシャルの計算をπ中間子の質量が実験値よりは重い場合に行い、その成果を論文として発表した。この系では、粒子の質量が変わる非弾性散乱が起こるため、本研究の方法が必要であった。今年度は、物理的なπ中間子を含めたより軽い質量でS=-2の2体バリオン系のポテンシャルを計算し、H粒子の性質について解析を行った。一部の結果は会議録などに発表しており、現在、本論文を準備中である。また、チャームクォークを含むテトラクォーク状態の候補の1つとして注目されているZc(3900)に対して、上記の拡張した方法を適用して解析を行った。その結果、実験で見つかったシグナルは、テトラクォーク状態ではなく、非弾性散乱の閾値でのカスプ効果であることを明らかにした。この研究結果は今年度に論文として発表した。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

  • Research Products

    (19 results)

All 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Acknowledgement Compliant: 5 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 9 results,  Invited: 8 results) Remarks (1 results)

  • [Int'l Joint Research] Max Planck Institue for Physics(Germany)

    • Country Name
      Germany
    • Counterpart Institution
      Max Planck Institue for Physics
  • [Int'l Joint Research] Wigner Research Center for Physics(Hungary)

    • Country Name
      Hungary
    • Counterpart Institution
      Wigner Research Center for Physics
  • [Journal Article] Review of lattice results concerning low-energy particle physics2017

    • Author(s)
      S. Aoki, Y. Aoki, D. Becirevic, C. Bernard, T. Blum, G. Colangelo, M. Della Morte, P. Dimopoulos, S. D\"urr, H. Fukaya, M. Golterman, Steven Gottlieb, S. Hashimoto, U. M. Heller, R. Horsley, A. J\"uttner, T. Kaneko, L. Lellouch, H. Leutwyler, C.-J. D. Lin, V. Lubicz, E. Lunghi, 他10名
    • Journal Title

      Eur. Phys. J. C

      Volume: 77 Pages: 112

    • DOI

      10.1140/epjc/s10052-016-4509-7

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Fate of the Tetraquark Candidate Zc(3900) in Lattice QCD2016

    • Author(s)
      Yoichi Ikeda, Sinya Aoki, Takumi Doi, Shinya Gongyo, Tetsuo Hatsuda, Takashi Inoue, Takumi Iritani, Noriyoshi Ishii, Keiko Murano, Kenji Sasaki
    • Journal Title

      Physical Review Leters

      Volume: 117 Pages: 242001

    • DOI

      10.1103/PhysRevLett.117.242001

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Flow equation for the large N scalar model and induced geometries2016

    • Author(s)
      Sinya Aoki, Janos Balog, Tetsuya Onogi, Peter Weisz
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 8 Pages: 083B04

    • DOI

      10.1093/ptep/ptw106

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Mirage in Temporal Correlation functions for Baryon-Baryon Interactions in Lattice QCD2016

    • Author(s)
      Takumi Iritani, Takumi Doi, Sinya Aoki, Shinya Gongyo, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Noriyoshi Ishii, Keiko Murano, Hidekatsu Nemura, Kenji Sasaki
    • Journal Title

      JHEP

      Volume: 1610 Pages: 101

    • DOI

      10.1007/JHEP10(2016)101

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Entanglement entropy for pure gauge theories in 1+1 dimensions using the lattice regularization2016

    • Author(s)
      Sinya Aoki, Etsuko Itou, Keitaro Nagata
    • Journal Title

      IJMPA

      Volume: 31 Pages: 1650192

    • DOI

      10.1142/S0217751X1650192X

    • Peer Reviewed
  • [Journal Article] First results of baryon interactions from lattice QCD with physical masses (3) -- Strangeness $S=-2$ two-baryon system2016

    • Author(s)
      Kenji Sasaki, Sinya Aoki, Takumi Doi, Shinya Gongyo, Tetsuo Hatsuda , Yoichi Ikeda, Takashi Inoue, Takumi Iritani, Noriyoshi Ishii, Takaya Miyamoto , Keiko Murano
    • Journal Title

      PoS

      Volume: Lattice 2015 Pages: 088

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Current status for two baryon systems in lattice QCD 1. Difficulties in the direct method2017

    • Author(s)
      Sinya AOKI
    • Organizer
      JPS Annual meeting
    • Place of Presentation
      Osaka, Japan
    • Year and Date
      2017-03-17 – 2017-03-20
  • [Presentation] Flow equation for the scalar model in the large N expansion and its applications2017

    • Author(s)
      Sinya AOKI
    • Organizer
      Workshop `` Holography, Quantum Entanglement and Higher Spin Gravity"
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2017-02-06 – 2017-02-07
    • Int'l Joint Research / Invited
  • [Presentation] Current status for two baryon systems in lattice QCD I. Difficulties in the direct method2016

    • Author(s)
      Sinya AOKI
    • Organizer
      First Tsukuba-CCS=RIKEN joint workshop on microscopic theories of nuclear structure and dynamics
    • Place of Presentation
      Tsukuba, Japan
    • Year and Date
      2016-12-12 – 2016-12-16
    • Int'l Joint Research / Invited
  • [Presentation] Difficulties in the direct method for two baryon systems in lattice QCD2016

    • Author(s)
      Sinya AOKI
    • Organizer
      ``Realistic hadron interactions in QCD",
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2016-11-21 – 2016-12-02
    • Int'l Joint Research / Invited
  • [Presentation] Lattice QCD approach to baryon interactions2016

    • Author(s)
      Sinya Aoki
    • Organizer
      The conference ``Compact stars and gravitational waves",
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2016-10-31 – 2016-11-04
    • Int'l Joint Research / Invited
  • [Presentation] Current status for two baryon systems in lattice QCD2016

    • Author(s)
      Sinya Aoki
    • Organizer
      KITP program ``Frontiers in Nuclear Physics"
    • Place of Presentation
      Santa Barbara, USA
    • Year and Date
      2016-08-22 – 2016-11-04
    • Int'l Joint Research / Invited
  • [Presentation] Axial U(1) symmetry in 2-flavor QCD at finite temperature2016

    • Author(s)
      Sinya Aoki
    • Organizer
      YITP workshop MIN16 - Meson in Nucleus 2016 -
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2016-07-31 – 2016-08-02
    • Int'l Joint Research / Invited
  • [Presentation] Luescher's finite volume test for two-baryon systems with attractive interactions2016

    • Author(s)
      Sinya Aoki
    • Organizer
      The 34rd International Symposium on Lattice Field Theory (Lattice 2016)
    • Place of Presentation
      Southampton, UK
    • Year and Date
      2016-07-24 – 2016-07-30
    • Int'l Joint Research
  • [Presentation] Flow equation for the large N scalar model and induced geometries2016

    • Author(s)
      Sinya Aoki
    • Organizer
      4 Day Conference ``Holography and quantum information"
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2016-05-31 – 2016-06-03
    • Int'l Joint Research / Invited
  • [Presentation] Overview of the HAL QCD potential method and recent results2016

    • Author(s)
      Sinya Aoki
    • Organizer
      INT Program INT 16-1 "Nuclear Physics from Lattice QCD"
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2016-04-01 – 2016-05-27
    • Int'l Joint Research / Invited
  • [Remarks] 京都大学基礎物理学研究所 研究分野 素粒子分野

    • URL

      http://www.yukawa.kyoto-u.ac.jp/contents/labs/highenergy.html

URL: 

Published: 2018-01-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi