TY - JOUR
T1 - Flavored pions and kaons at next-to-leading order in mixed-action staggered chiral perturbation theory
AU - Bailey, Jon A.
AU - Kim, Jongjeong
AU - Lee, Weonjong
AU - Kim, Hyung Jin
AU - Yoon, Boram
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
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M3 - Conference article
AN - SCOPUS:84976293659
VL - 29-July-2013
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
M1 - 436
T2 - 31st International Symposium on Lattice Field Theory, LATTICE 2013
Y2 - 29 July 2013 through 3 August 2013
ER -