The Pion Electromagnetic Form Factor in the Light-Front Approach

Abstract

We study in the present work, the properties of pseudo-scalar light meson, in particular the elastic electromagnetic form factors and the decay constant for pseudoscalar mesons; also the transition form factor for the pion. In the case of the calculation for th e elastic electromagnetic form factors and the decay constants, the model used is the covariant light front model (LFCM), utilized in a previus work in the heavy hadronic sector. For the transition form factor, the models of the wave functions employed are the gaussian and the hydrogen-atom wave function. The pion system is compose by constituents confined quark-antiquark pair boun d state, wich in the present model is given by the Pauli-Villars regulators in order to regulariz e the Beth-Salpeter amplitudes.