Low Energy Constants from the zero mode contribution to the pseudo-scalar correlator
arXiv:hep-lat/0508034
Abstract
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 αof the quenched chiral Lagrangian.
arXiv comment6 pages, 1 figure, talk presented at Lattice05 (chiral fermions)
References in corpus (7)
- Exact chiral symmetry on the lattice and the Ginsparg-Wilson relation
- Chiral Perturbation Theory for the Quenched Approximation of QCD
- Perfect Lattice Actions for Quarks and Gluons
- Overlap in odd dimensions
- Axial Correlation Functions in the epsilon-Regime: a Numerical Study with Overlap Fermions
- Low-energy couplings of QCD from topological zero-mode wave functions
- Quark spectra and light hadron phenomenology from overlap fermions with improved gauge field action