Simulating at realistic quark masses: pseudoscalar decay constants and chiral logarithms

Details Simulating at realistic quark masses: pseudoscalar decay constants and chiral logarithms Simulating at realistic quark masses: pseudoscalar decay constants and chiral logarithms

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006slft.confe.179h&link_type=abstract

Proceedings of the XXIVth International Symposium on Lattice Field Theory. July 23-28, 2006, Tucson, Arizona., p.179.1

Computer Science

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Scientific paper

Due to improvements in computer performance and algorithms, the rapidly increasing cost for unquenched Wilson-type fermions with lighter quarks has been ameliorated and new simulations are now possible. Here we present results using two flavours of O(a)-improved Wilson fermions for meson decay constants at pseudoscalar masses down to 320 MeV. Results are at several lattice spacings down to about 0.07 fm and include a non-perturbative determination of the renormali- sation constant. This enables us to attempt contact with (partially quenched) chiral perturbation theory.

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