Heavy-strange meson decay constants in the continuum limit of quenched QCD

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dc.creatorDella Morte, Michele
dc.creatorDurr, Stephan
dc.creatorGuazzini, Damiano
dc.creatorHeitger, Jochen
dc.creatorJuttner, Andreas
dc.creatorSommer, Rainer
dc.date2007-10-11
dc.date2008-03-07
dc.date.accessioned2026-07-07T11:12:08Z
dc.date.available2026-07-07T11:12:08Z
dc.descriptionWe improve a previous quenched result for heavy-light pseudoscalar meson decay constants with the light quark taken to be the strange quark. A finer lattice resolution (a ~ 0.05 fm) in the continuum limit extrapolation of the data computed in the static approximation is included. We also give further details concerning the techniques used in order to keep the statistical and systematic errors at large lattice sizes L/a under control. Our final result, obtained by combining these data with determinations of the decay constant for pseudoscalar mesons around the D_s, follows nicely the qualitative expectation of the 1/m-expansion with a (relative) 1/m-term of about -0.5 GeV/m_PS. At the physical b-quark mass we obtain F_{B_s} = 193(7) MeV, where all errors apart from the quenched approximation are included.
dc.description20 pages including figures and tables, latex2e, uses JHEP3.cls; version published in JHEP, discussion of the continuum limit extended and references added, final results only minimally affected
dc.identifierhttps://arxiv.org/abs/0710.2201
dc.identifierhttp://arxiv.org/abs/0710.2201
dc.identifierJHEP0802:078,2008
dc.identifierdoi:10.1088/1126-6708/2008/02/078
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191282
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHeavy-strange meson decay constants in the continuum limit of quenched QCD
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