Leptonic and Semileptonic Decays of Pseudoscalar Mesons
arXiv:hep-ph/9903446 · doi:10.1016/S0370-2693(99)00474-8
Abstract
We employ the relativistic constituent quark model to give a unified description of the leptonic and semileptonic decays of pseudoscalar mesons (π, K, D, D_s, B, B_s). The calculated leptonic decay constants and form factors are found to be in good agreement with available experimental data and other approaches. We reproduce the results of spin-flavor symmetry in the heavy quark limit.
12 pages LaTeX (elsart.sty) + 4 figures; added references, to appear in Phys. Lett. B