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

Göckelera, Meinulf; Horsley, Roger; Nakamura, Yoshifumi; Pleiter, Dirk; Rakow, Paul E.L.; Schierholz, Gerrit; Schroers, Wolfram; Streuer, Thomas; Stüben, Hinnerk and Zanotti, James M. (2006) Simulating at realistic quark masses: pseudoscalar decay constants and chiral logarithms. In: 24th International Symposium On Lattice Field Theory (Lattice 2006), 23-28 Jul 2006, Tucson, Arizona.

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Abstract

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

Item Type:Conference or Workshop Item (Paper)
Additional Information:LTH 724; arXiv Number: arXiv:hep-lat/0610066v1. Additional citation Information: PoS(LAT2006)179. Article ID: 179. Conference ID: LAT2006. 7 pages.
Uncontrolled Keywords:perturbation theory; chiral; pseudoscalar meson; decay constant; quark; mass; lattice field theory; flavor 2; renormalization; nonperturbative; numerical calculations; Monte Carlo
Subjects:Q Science > QC Physics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences
Publisher's Statement:Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. http://creativecommons.org/licenses/by-nc-sa/2.0/deed.en
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Refereed:Yes
Status:Published
ID Code:123
Deposited On:08 Aug 2008 14:17
Last Modified:20 May 2011 19:18

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