We calculate, in the continuum limit of quenched lattice QCD, the matrix elements of the heavy-heavy vector current between heavy-light pseudoscalar meson states. We present the form factors for different values of the initial and final meson masses at finite momentum transfer. In particular, we calculate the non-perturbative correction to the differential decay rate of the process B → Dℓν including the case of a non-vanishing lepton mass.
DE DIVITIIS, G.m., Petronzio, R., Tantalo, N. (2007). Quenched lattice calculation of semileptonic heavy-light meson form factors. JOURNAL OF HIGH ENERGY PHYSICS(10) [10.1088/1126-6708/2007/10/062].
Quenched lattice calculation of semileptonic heavy-light meson form factors
DE DIVITIIS, GIULIA MARIA;PETRONZIO, ROBERTO;TANTALO, NAZZARIO
2007-01-01
Abstract
We calculate, in the continuum limit of quenched lattice QCD, the matrix elements of the heavy-heavy vector current between heavy-light pseudoscalar meson states. We present the form factors for different values of the initial and final meson masses at finite momentum transfer. In particular, we calculate the non-perturbative correction to the differential decay rate of the process B → Dℓν including the case of a non-vanishing lepton mass.File in questo prodotto:
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