Decay constants of P-wave heavy-light mesons from unquenched lattice QCD

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dc.creatorUKQCD Collaboration
dc.creatorHerdoiza, G.
dc.creatorMcNeile, C.
dc.creatorMichael, C.
dc.date2006-04-01
dc.date2006-07-06
dc.date.accessioned2026-07-07T11:43:23Z
dc.date.available2026-07-07T11:43:23Z
dc.descriptionWe review some decays that require knowledge of the decay constants of $0^{+}$ heavy-light mesons. We compute the decay constants of P-wave heavy-light mesons from unquenched lattice QCD, with two degenerate flavours of sea quarks, at a single lattice spacing. The lightest sea quark mass used in the calculation is a third of the strange quark mass. For the charm-strange meson we obtain the decay constant: $f_{D_{s 0^+}} = 340(110)$ MeV using our normalisation conventions. We obtain the $f_{P_s}^{static}$ (static-strange P-wave) decay constant as $302(39)$ MeV.
dc.descriptionWe have included a effective mass plot and a graph for the chiral extrapolation in the light quark mass. Some of the discussions are clarified. No change in results. Accepted for publication in Phys.Rev.D
dc.identifierhttps://arxiv.org/abs/hep-lat/0604001
dc.identifierhttp://arxiv.org/abs/hep-lat/0604001
dc.identifierPhys.Rev.D74:014510,2006
dc.identifierdoi:10.1103/PhysRevD.74.014510
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201221
dc.subjectHigh Energy Physics - Lattice
dc.titleDecay constants of P-wave heavy-light mesons from unquenched lattice QCD
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