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

A. Bazavov, Walter Freeman, D. Toussaint, C. Bernard, X. Du, John W 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 article

1 Scopus citations

Abstract

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
Volume91
StatePublished - Jan 1 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

Fingerprint Dive into the research topics of 'SU(2) chiral fits to light pseudoscalar masses and decay constants'. Together they form a unique fingerprint.

  • Cite this

    Bazavov, A., Freeman, W., Toussaint, D., Bernard, C., Du, X., Laiho, J. W., DeTar, C., Levkova, L., Oktay, M. B., Gottlieb, S., Heller, U. M., Hetrick, J. E., Osborn, J., Sugar, R., & Van De Water, R. S. (2009). SU(2) chiral fits to light pseudoscalar masses and decay constants. Proceedings of Science, 91.