Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-08-23
Phys.Rev.D76:096010,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 4 figures
Scientific paper
10.1103/PhysRevD.76.096010
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 $\rho$ 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.
Castro Gabriel Lopez
Flores-Baéz F. V.
Sanchez Genaro Toledo
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