Overlap hypercube fermions in QCD with light quarks
Aug, 20056 pages
Published in:
- PoS LAT2005 (2006) 138
Contribution to:
e-Print:
- hep-lat/0508016 [hep-lat]
DOI:
Report number:
- HU-EP-05-38,
- BI-TP-2005-29,
- SFB-CPP-05-39
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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.References(40)
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