Quenched lattice calculation of semileptonic heavy-light meson form factors

Details Quenched lattice calculation of semileptonic heavy-light meson form factors Quenched lattice calculation of semileptonic heavy-light meson form factors

2007-07-04

arxiv.org/abs/0707.0587v2

JHEP0710:062,2007

Physics

High Energy Physics

High Energy Physics - Lattice

16 pages, 10 figures, version accepted for publication on JHEP

Scientific paper

10.1088/1126-6708/2007/10/062

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 --> D l nu including the case of a non-vanishing lepton mass.

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