出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We investigate mesonic screening correlators at T = 2Tc using the overlap fermions in the
quenched approximation, where Tc 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 r and p 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.
