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

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

2005-07-04

arxiv.org/abs/hep-lat/0507004v1

Nucl.Phys. B726 (2005) 93-108

Physics

High Energy Physics

High Energy Physics - Lattice

20 pages, 7 eps figures

Scientific paper

10.1016/j.nuclphysb.2005.08.012

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.

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