Radiative decays of ground state light vector mesons with non relativistic and relativistic phase spaces

The main objective of the present work has been the study of radiative decays of light vector mesons within the framework of NRQM formalism using both non relativistic and relativistic phase spaces. In this work, radiative decay widths of light vector mesons have been obtained using spectroscopic parameters from which the masses of vector and pseudoscalar mesons are obtained. The experimental data on radiative decay rates is understood theoretically in terms of a multipole expansion model. The quality of the calculated results reveal that the non relativistic phase space is not a correct prescription for light vector mesons. Comparison between the photon energy and the mass of the emitting meson reveals that the relativistic phase space is more suited which is seen in the model calculations