Continuum and lattice meson spectral functions at nonzero momentum and high temperature

被引：84

作者：

Aarts, G

Resco, JMM

机构：

[1] Univ Coll Swansea, Dept Phys, Swansea SA2 8PP, W Glam, Wales

[2] Brandon Univ, Dept Phys & Astron, Brandon, MB R7A 6A9, Canada

来源：

NUCLEAR PHYSICS B | 2005年 / 726卷 / 1-2期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1016/j.nuclphysb.2005.08.012

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 analyse discretization effects in the calculation of high-temperature meson spectral functions at nonzero momentum and fermion mass on the lattice. We do so by comparing continuum and lattice spectral functions in the infinite temperature limit. Complete analytical results for the spectral densities in the continuum are presented, along with simple expressions for spectral functions obtained with Wilson and staggered fermions, on anisotropic lattices. We comment on the use of local and point split currents. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：93 / 108

页数：16

共 25 条

[1]

Aarts G, 2002, J HIGH ENERGY PHYS

[2] Transport coefficients from the lattice? [J].