淬火各向异性格点QCD中的负宇称重子
高能物理 - 格点
2009-11-10 v1
摘要
我们在淬火各向异性格点QCD中研究了负宇称重子谱。负宇称重子作为基态重子的宇称伙伴被测量。除了味道八重态和十重态重子外,我们特别关注作为三夸克态的味道单态负宇称重子,并将其与Lambda(1405)重子进行比较。味道八重态和十重态负宇称重子质量的数值结果接近最低 lying 负宇称重子的实验值,而味道单态重子比Lambda(1405)重得多。这表明Lambda(1405)可能是一个多夸克态,如N-Kbar分子,而不是味道单态3夸克态。
引用
@article{arxiv.hep-lat/0312033,
title = {Negative-Parity Baryons in Quenched Anisotropic Lattice QCD},
author = {Y. Nemoto and N. Nakajima and H. Matsufuru and H. Suganuma},
journal= {arXiv preprint arXiv:hep-lat/0312033},
year = {2009}
}
备注
4 pages, 4 figs. Talk given at 16th International Conference on Particles and Nuclei (PANIC 02), Osaka, Japan, 30 Sep - 4 Oct 2002