English

Overlap hypercube fermions in QCD with light quarks

High Energy Physics - Lattice 2011-04-11 v1

Abstract

We report on simulation results with overlap hypercube fermions (overlap HF) - a type of exactly chiral lattice fermions - and their link to chiral perturbation theory. We first sketch the construction of the overlap HF and discuss its high level of locality. Next we show applications in the p-regime of QCD, where we evaluate m_{\pi}, m_{\rho}, the quark mass according to the PCAC relation, the renormalisation constant Z_A and the pion decay constant F_{\pi} as functions of the bare quark mass. F_{\pi} is then reconsidered at even smaller quark masses in the epsilon-regime, along with the scalar condensate \Sigma. In that context we also discuss results for the topological charges and susceptibility.

Keywords

Cite

@article{arxiv.hep-lat/0508016,
  title  = {Overlap hypercube fermions in QCD with light quarks},
  author = {W. Bietenholz and S. Shcheredin},
  journal= {arXiv preprint arXiv:hep-lat/0508016},
  year   = {2011}
}

Comments

6 pages, 6 figures, talk presented at Lattice 2005 (chiral fermions)

R2 v1 2026-07-22T13:15:53.545Z