期刊
PHYSICS LETTERS B
卷 660, 期 4, 页码 369-375出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2008.01.011
关键词
-
The study of one or more baryons in lattice QCD is severely hindered by the exponential decay in time of the signal-to-noise ratio. The rate at which the signal-to-noise decreases is a function of the pion mass. More precisely, it depends on the minimum allowed pion energy in the box, which, for periodic boundary conditions, is equal to its mass. We propose a set of boundary conditions, given by a parity orbifold construction, which eliminates the zero momentum pion modes, raising the minimum pion energy and thereby improving the signal-to-noise ratio of (multi)-baryon correlation functions at long Euclidean times. We discuss variations of these restless pions boundary conditions and focus on their impact on the study of nuclear forces. Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据