Electromagnetic Decays of Vector Mesons in a Covariant Model

Details Electromagnetic Decays of Vector Mesons in a Covariant Model Electromagnetic Decays of Vector Mesons in a Covariant Model

2008-02-21

arxiv.org/abs/0802.3144v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures. Proceedings of Hadron 07. To appear in EPJ A

Scientific paper

A fully covariant model for describing the electromagnetic decay of Vector Mesons, both in light and in heavy sectors, is presented. The main ingredients of our approach are i) an Ansatz for the Bethe-Salpeter vertex for Vector Mesons, and ii) a Mandelstam-like formula for the electromagnetic decay constant. The free parameters of our approach are fixed through a comparison with the transverse momentum distribution obtained within a Light-Front Hamiltonian Dynamics framework with constituent quarks. Preliminary results for both the decays constants and the probability of the valence component are shown.

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