On the Form Factors of the $D_{s}^{+}\to φμ^{+}ν_μ decay

Details On the Form Factors of the $D_{s}^{+}\to φμ^{+}ν_μ decay On the Form Factors of the $D_{s}^{+}\to φμ^{+}ν_μ decay

1995-05-10

arxiv.org/abs/hep-ph/9505273v1

Phys.Lett. B369 (1996) 351-357

Physics

High Energy Physics

High Energy Physics - Phenomenology

7pages, latex, no figures

Scientific paper

10.1016/0370-2693(95)01532-9

We apply 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, to calculate the form factors of the $D^{\,+}_{\,s}\to\phi~\mu^+~\nu_{\,\mu}$ decay up to the first order in current $s$ -- quark mass. The theoretical results are compared with experimental data and found to be in good agreement.

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