O(a) improved twisted mass lattice QCD
High Energy Physics - Lattice
2010-02-03 v1
Abstract
Lattice QCD with Wilson quarks and a chirally twisted mass term (tmQCD) has been introduced in refs. [1,2]. We here apply Symanzik's improvement programme to this theory and list the counterterms which arise at first order in the lattice spacing a. Based on the generalised transfer matrix, we define the tmQCD Schrodinger functional and use it to derive renormalized on-shell correlation functions. By studying their continuum approach in perturbation theory we then determine the new O(a) counterterms of the action and of a few quark bilinear operators to one-loop order.
Cite
@article{arxiv.hep-lat/0104014,
title = {O(a) improved twisted mass lattice QCD},
author = {Roberto Frezzotti and Stefan Sint and Peter Weisz},
journal= {arXiv preprint arXiv:hep-lat/0104014},
year = {2010}
}
Comments
31 pages latex, no figures