Towards continuum limit of screening lengths with chiral Fermions

Details Towards continuum limit of screening lengths with chiral Fermions Towards continuum limit of screening lengths with chiral Fermions

2006-09-29

arxiv.org/abs/hep-lat/0609074v1

PoSLAT2006:135,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 8 figures, Lattice 2006 (High Temperature and Density), PoS Format

Scientific paper

We investigate mesonic screening correlators at T=2T_c using the overlap Fermions in the quenched approximation, where T_c is the QCD phase transition temperature. Using lattices with temporal extent up to 8, we found that both pseudoscalar and vector correlators exhibit a nice $cosh$ behaviour, leading to a plateau behaviour in the local screening masses as a function of distance. The rho and pi masses so determined show very little variation with the lattice spacing a. This augurs well for the use of chiral Fermions, and further suggests the small deviations of these masses from the ideal gas values are genuine effects of interactions.

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