The QCD spectrum with three quark flavors

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dc.creatorBernard, Claude
dc.creatorBurch, Tom
dc.creatorDeGrand, Thomas A.
dc.creatorDatta, Saumen
dc.creatorDeTar, Carleton
dc.creatorGottlieb, Steven
dc.creatorHeller, Urs M.
dc.creatorOrginos, Kostas
dc.creatorSugar, Robert
dc.creatorToussaint, Doug
dc.date2001-04-02
dc.date2001-05-29
dc.date.accessioned2026-07-07T11:30:26Z
dc.date.available2026-07-07T11:30:26Z
dc.descriptionWe present results from a lattice hadron spectrum calculation using three flavors of dynamical quarks - two light and one strange, and quenched simulations for comparison. These simulations were done using a one-loop Symanzik improved gauge action and an improved Kogut-Susskind quark action. The lattice spacings, and hence also the physical volumes, were tuned to be the same in all the runs to better expose differences due to flavor number. Lattice spacings were tuned using the static quark potential, so as a byproduct we obtain updated results for the effect of sea quarks on the static quark potential. We find indications that the full QCD meson spectrum is in better agreement with experiment than the quenched spectrum. For the 0++ (a0) meson we see a coupling to two pseudoscalar mesons, or a meson decay on the lattice.
dc.description38 pages, 20 figures, uses epsf. 5/29/01 revision responds to referee's Comments, changes pion fits and tables, and corrects Fig. 10 and some minor errors
dc.identifierhttps://arxiv.org/abs/hep-lat/0104002
dc.identifierhttp://arxiv.org/abs/hep-lat/0104002
dc.identifierPhys.Rev.D64:054506,2001
dc.identifierdoi:10.1103/PhysRevD.64.054506
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197008
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe QCD spectrum with three quark flavors
dc.typetext

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