Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-08-29
J.Phys.G27:2203-2210,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 2 eps figures, Latex. Accepted for publication in Journal of Physics G: Nuclear and Particle Physics(2001)
Scientific paper
10.1088/0954-3899/27/11/301
We study the effects of model-dependent contributions and the electric quadrupole moment of vector mesons in the decays $V^- \to P^-P^0\gamma$ and $\tau^- \to \nu V^-\gamma$. Their interference with the amplitude originating from the radiation due to electric charges vanishes for photons emitted collinearly to the charged particle in the final state. This brings further support to our claim in previous works, that measurements of the photon energy spectrum for nearly collinear photons in those decays are suitable for a first measurement of the magnetic dipole moment of charged vector mesons.
Castro Gabriel Lopez
Sanchez Genaro Toledo
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