The parity partner of the nucleon in quenched QCD with domain wall fermions

被引:23
|
作者
Sasaki, S [1 ]
机构
[1] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA
关键词
D O I
10.1016/S0920-5632(00)91624-4
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We present preliminary results for the mass spectrum of the nucleon and its low-lying excited states from quenched lattice QCD using the domain wall fermion method which preserves the chiral symmetry at finite lattice cutoff. Definite mass splitting is observed between the nucleon and its parity partner. This splitting grows with decreasing valence quark mass. We also present preliminary data regarding the first positive-parity excited state.
引用
收藏
页码:206 / 208
页数:3
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