2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38573We present the results of a calculation of semileptonic form factors of D and B mesons. The calculation uses nonperturbatively order a improved quenched lattice QCD and two values of the coupling. Results for charm mesons show reasonable agreement with experiment. The lattice results for B -> rho l nu are compared with high q^2 experimental results.Contribution to Lattice 2001 (heavy quarks); 3 pages, 4 figures. Typo correctedHigh Energy Physics - Latticetext