Pion and kaon physics with improved staggered quarks

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dc.creatorMILC Collaboration
dc.creatorAubin, C.
dc.creatorBernard, C.
dc.creatorDeTar, C.
dc.creatorGottlieb, Steven
dc.creatorGregory, E. B.
dc.creatorHeller, Urs M.
dc.creatorHetrick, J. E.
dc.creatorOsborn, J.
dc.creatorSugar, R.
dc.creatorToussaint, D.
dc.date2003-09-15
dc.date.accessioned2026-07-07T11:30:45Z
dc.date.available2026-07-07T11:30:45Z
dc.descriptionWe compute pseudoscalar meson masses and decay constants using staggered quarks on lattices with three flavors of sea quarks and lattice spacings $\approx 0.12$ fm and $\approx 0.09$ fm. We fit partially quenched results to ``staggered chiral perturbation theory'' formulae, thereby taking into account the effects of taste-symmetry violations. Chiral logarithms are observed. From the fits we calculate $f_π$ and $f_K$, extract Gasser-Leutwyler parameters of the chiral Lagrangian, and (modulo rather large perturbative errors) find the light and strange quark masses.
dc.descriptionLattice2003(spectrum); 3 pages, 1 eps figure
dc.identifierhttps://arxiv.org/abs/hep-lat/0309088
dc.identifierhttp://arxiv.org/abs/hep-lat/0309088
dc.identifierNucl.Phys.Proc.Suppl.129:227-229,2004
dc.identifierdoi:10.1016/S0920-5632(03)02538-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197074
dc.subjectHigh Energy Physics - Lattice
dc.titlePion and kaon physics with improved staggered quarks
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