The width difference of rho vector mesons
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
We compute the difference in decay widths of charged and neutral \rho(770) vector mesons. The isospin breaking arising from mass differences of neutral and charged \pi and \rho mesons, radiative corrections to \rho -> \pi\pi, and the \rho -> \pi\pi\gamma decays are taken into account. It is found that the width difference \Delta \Gamma_rho is very sensitive ot the isospin breaking in the meson mass \Delta m_\rho. This result can be useful to test the correlations observed between the values of these parameters extracted from experimental data.
Cite
@article{arxiv.0708.3256,
title = {The width difference of rho vector mesons},
author = {F. V. Flores-Baez and G. Lopez Castro and G. Toledo Sanchez},
journal= {arXiv preprint arXiv:0708.3256},
year = {2008}
}
Comments
16 pages, 4 figures