SU(2) chiral fits to light pseudoscalar masses and decay constants

A. Bazavov, W. Freeman, D. Toussaint, C. Bernard, X. Du, J. Laiho, C. DeTar, L. Levkova, M. B. Oktay, Steven Gottlieb, U. M. Heller, J. E. Hetrick, J. Osborn, R. Sugar, R. S. Van De Water

Research output: Contribution to journalConference Articlepeer-review

1 Scopus citations


We present the results of fits to recent asqtad data in the light pseudoscalar sector using SU(2) partially-quenched staggered chiral perturbation theory. Superfine (a0.06 fm) and ultrafine (a0.045 fm) ensembles are used, where light sea quark masses and taste splittings are small compared to the strange quark mass. Our fits include continuum NNLO chiral logarithms and analytic terms. We give preliminary results for the pion decay constant, SU(2) low-energy constants and the chiral condensate in the two-flavor chiral limit.

Original languageEnglish (US)
JournalProceedings of Science
StatePublished - 2009
Externally publishedYes
Event27th International Symposium on Lattice Field Theory, LAT 2009 - Beijing, China
Duration: Jul 26 2009Jul 31 2009

ASJC Scopus subject areas

  • General


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