Continuum and lattice meson spectral functions at nonzero momentum and high temperature
High Energy Physics - Lattice
2009-11-11 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
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.
Keywords
Cite
@article{arxiv.hep-lat/0507004,
title = {Continuum and lattice meson spectral functions at nonzero momentum and high temperature},
author = {Gert Aarts and Jose M. Martinez Resco},
journal= {arXiv preprint arXiv:hep-lat/0507004},
year = {2009}
}
Comments
20 pages, 7 eps figures