Chiral Anomaly in Lattice QCD with Twisted Mass Wilson Fermion
High Energy Physics - Lattice
2010-02-26 v2
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.
Keywords
Cite
@article{arxiv.0910.5611,
title = {Chiral Anomaly in Lattice QCD with Twisted Mass Wilson Fermion},
author = {Asit K. De and A. Harindranath and Santanu Mondal},
journal= {arXiv preprint arXiv:0910.5611},
year = {2010}
}
Comments
Typos corrected