Chiral Anomaly in Lattice QCD with Twisted Mass Wilson Fermion
arXiv:0910.5611 · doi:10.1016/j.physletb.2009.10.079
Abstract
The flavour singlet axial Ward identity with Osterwalder-Seiler twisted mass Wilson fermion action is studied on a finite lattice, with finite fermion mass and the Wilson parameter r up to 1. Approach to the infinite volume chiral limit and emergence of the anomaly is significantly better than that obtained with O(a) and O(a^2) improved fermion actions. We have shown explicitly that up to O(g^2), parity violating terms cancel in the Ward identity even at finite volume and finite lattice spacing.
Typos corrected
References in corpus (1)
Cited by in corpus (6)
- Topological susceptibility in Lattice QCD with unimproved Wilson fermions
- Many avatars of the Wilson fermion: A perturbative analysis
- Effect of r averaging on Chiral Anomaly in Lattice QCD with Wilson Fermion: Finite volume and cutoff effects
- Pion and nucleon in two flavour QCD with unimproved Wilson fermions
- Spanning of Topological sectors, charge and susceptibility with naive Wilson fermions
- Quark mass, scale and volume dependence of topological charge density correlator in Lattice QCD