出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We apply different types of overlap operators in quenched QCD simulations to compute the zero
mode contribution to the pseudo-scalar correlator. In particular we use the conventional Neuberger
Dirac operator and the overlap hypercube Dirac operator. Confronting our data with the
analytical predictions by Chiral Perturbation Theory we evaluate the pion decay constant and the
parameter a of the quenched chiral Lagrangian.
