Quenched lattice calculation of the B --> D l nu decay rate

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dc.creatorde Divitiis, G. M.
dc.creatorMolinaro, E.
dc.creatorPetronzio, R.
dc.creatorTantalo, N.
dc.date2007-07-04
dc.date2007-10-03
dc.date.accessioned2026-07-07T11:17:30Z
dc.date.available2026-07-07T11:17:30Z
dc.descriptionWe calculate, in the continuum limit of quenched lattice QCD, the form factor that enters in the decay rate of the semileptonic decay B --> D l nu. Making use of the step scaling method (SSM), previously introduced to handle two scale problems in lattice QCD, and of flavour twisted boundary conditions we extract G(w) at finite momentum transfer and at the physical values of the heavy quark masses. Our results can be used in order to extract the CKM matrix element Vcb by the experimental decay rate without model dependent extrapolations.
dc.description5 pages, 4 figures, accepted for publication on Phys. Lett. B, corrected one typo
dc.identifierhttps://arxiv.org/abs/0707.0582
dc.identifierhttp://arxiv.org/abs/0707.0582
dc.identifierPhys.Lett.B655:45-49,2007
dc.identifierdoi:10.1016/j.physletb.2007.08.085
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193030
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQuenched lattice calculation of the B --> D l nu decay rate
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