Flavored pions and kaons at next-to-leading order in mixed-action staggered chiral perturbation theory

Jon A. Bailey, Jongjeong Kim, Weonjong Lee, Hyung Jin Kim, Boram Yoon

Research output: Contribution to journalConference articlepeer-review

Abstract

Different versions of improved staggered fermions can be used as valence quarks to reduce discretization effects in lattice QCD calculations while increasing statistics on existing staggered gauge ensembles. Such mixed-action simulations can be used to improve determinations of light quark masses, Gasser-Leutwyler couplings, decay constants, and other parameters relevant to particle phenomenology. We recall the generalization of ordinary, unmixed staggered chiral perturbation theory required to describe data from lattice calculations with a mixed action such as with HYP staggered valence quarks and asqtad sea quarks. We calculate the next-to-leading order loop diagrams contributing to the masses and decay constants of the flavored pseudo-Goldstone bosons of all tastes and here report results for the decay constants and valence-valence masses.

Original languageEnglish
Article number436
JournalProceedings of Science
Volume29-July-2013
Publication statusPublished - 2013
Event31st International Symposium on Lattice Field Theory, LATTICE 2013 - Mainz, Germany
Duration: 2013 Jul 292013 Aug 3

All Science Journal Classification (ASJC) codes

  • General

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