Current s-Quark Mass Corrections to the Form Factors of D-Meson Semileptonic Decays

Details Current s-Quark Mass Corrections to the Form Factors of D-Meson Semileptonic Decays Current s-Quark Mass Corrections to the Form Factors of D-Meson Semileptonic Decays

1995-02-13

arxiv.org/abs/hep-ph/9502282v1

Phys.Lett. B348 (1995) 609-614

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, latex, no figures, accepted for publication in Phys. Lett. B

Scientific paper

10.1016/0370-2693(95)00180-S

The infinite mass effective theory, when a heavy quark mass tends to infinity, and Chiral perturbation theory at the quark level, based on the extended Nambu -- Jona -- Lasinio model with linear realization of chiral $U(3)\times U(3)$ symmetry, are applied to the calculation of current $s$ -- quark mass corrections to the form factors of the $D\to\bar K~e^+~\nu_e$ and $D\to\bar K^{\ast}~e^+~\nu_e$ decays. These corrections turn out to be quite significant, of the order of $7-20\%$. The theoretical results are compared with experimental data.

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