Dependence of QCD hadron masses on the number of dynamical quarks

被引：27

作者：

Chen, D

Mawhinney, RD

机构：

[1] Department of Physics, Columbia University, New York

来源：

NUCLEAR PHYSICS B | 1997年

关键词：

D O I：

10.1016/S0920-5632(96)00618-4

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 have studied the the hadron spectrum while varying the number of light dynamical quarks when the physical lattice spacing and volume are held fixed relative to the rho mass. For two and zero flavors of staggered fermions, we find the nucleon to rho mass ratios (extrapolated to zero valence quark mass) are very similar. However, for four flavors the ratio is 7% (2 sigma) above the two flavor result.

引用

页码：216 / 218

页数：3