Standard Model Matrix Elements for Neutral B-Meson Mixing and Associated Decay Constants

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dc.creatorUKQCD Collaboration
dc.creatorLellouch, Laurent
dc.creatorLin, C. -J. David
dc.date2000-11-07
dc.date2002-02-28
dc.date.accessioned2026-07-07T11:09:05Z
dc.date.available2026-07-07T11:09:05Z
dc.descriptionWe present results of quenched lattice calculations of the matrix elements relevant for B_d-\bar B_d and B_s-\bar B_s mixing in the Standard Model. Results for the corresponding SU(3)-breaking ratios, which can be used to constrain or determine |V_{td}|, are also given. The calculations are performed at two values of the lattice spacing, corresponding to β= 6.0 and β= 6.2, with quarks described by a mean-field-improved Sheikholeslami-Wohlert action. As a by-product, we obtain the leptonic decay constants of B and D mesons. We also present matrix elements relevant for D^0-\bar D^0 mixing. Our results are summarized in the Introduction.
dc.description27 pages (RevTeX), 26 figures, version published in Phys. Rev. D: improved estimate of the systematic error associated with the uncertainty on the strange quark mass and other small improvements to analysis (results change only slightly); correction of typos and minor changes to text; RevTeX formatting
dc.identifierhttps://arxiv.org/abs/hep-ph/0011086
dc.identifierhttp://arxiv.org/abs/hep-ph/0011086
dc.identifierPhys.Rev.D64:094501,2001
dc.identifierdoi:10.1103/PhysRevD.64.094501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190346
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Lattice
dc.titleStandard Model Matrix Elements for Neutral B-Meson Mixing and Associated Decay Constants
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