論文

査読有り
2007年

Five-quark picture of Lambda(1405) in anisotropic lattice QCD

PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT
  • Noriyoshi Ishii
  • ,
  • Takumi Doi
  • ,
  • Iakoto Oka
  • ,
  • Hideo Suganuma

168
168
開始ページ
598
終了ページ
601
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1143/PTPS.168.598
出版者・発行元
PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE

Fine-quark (5Q) picture of Lambda(1405) is studied using quenched lattice QCD with an exotic 5Q operator of N (K) over bar type. To discreminate mere N (K) over tilde and Sigma pi scattering states, Hybrid Boundary Condition (HBC), a flavor-dependent boundary condition, is imposed on the quark fields along spatial direction. 5Q mass m(5Q) similar or equal to 1.89 GeV is obtained after the chiral extrapolation to the physical quark mass region, which is too heavy to be identified with Lambda(1405). Then, Lambda(1405) seems neither a pure 3Q state nor a pure 5Q state, and therefore we present an interesting possibility that Lambda(1405) is a mixed state of 3Q and 5Q states.

リンク情報
DOI
https://doi.org/10.1143/PTPS.168.598
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000251015200089&DestApp=WOS_CPL
ID情報
  • DOI : 10.1143/PTPS.168.598
  • ISSN : 0375-9687
  • Web of Science ID : WOS:000251015200089

エクスポート
BibTeX RIS