Heavy --> Light semileptonic decays of pseudoscalar mesons from lattice   QCD
  We have computed the form factors for B --> pi and D --> K(pi) semileptonic decays on the lattice by using full non-perturbative O(a) improvement, in the quenched approximation. Our results are expressed in terms of few parameters which describe the q^2-dependence and normalization of the form factors. 
A.Abada, D.Becirevic, Ph.Boucaud, J.P.Leroy, V.Lubicz, F.Mescia