English

One loop matching coefficients for a variant overlap action--and some of its simpler relatives

High Energy Physics - Lattice 2016-09-01 v1

Abstract

I present one-loop perturbative calculations of matching coefficients between matrix elements in continuum regulated QCD and lattice QCD with overlap fermions, with emphasis a recently-proposed variant discretization of the overlap. These fermions have extended (``fat link'') gauge connections. The scale for evaluation of the running coupling constant (in the context of the Lepage-Mackenzie fixing scheme) is also given. A variety of results (for additive mass renormalization, local currents, and some non-penguin four-fermion operators) for naive, Wilson, clover, and overlap actions are shown.

Keywords

Cite

@article{arxiv.hep-lat/0210028,
  title  = {One loop matching coefficients for a variant overlap action--and some of its simpler relatives},
  author = {Thomas DeGrand},
  journal= {arXiv preprint arXiv:hep-lat/0210028},
  year   = {2016}
}

Comments

17 pages, Revtex, 11 postscript figures. COLO-HEP-485