Arguments concerning an SU(3)-scalar term in the electromagnetic current operator and the value forΓ(ρ→πγ)

1 July 1978

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 18 (1) , 330-333
https://doi.org/10.1103/physrevd.18.330

Abstract

It is shown that arguments given by Edwards and Kamal, against the explanation of the experimental value

Γ (ρ \to π γ) = 35 \pm 10

keV by an SU(3)-scalar term in the electromagnetic current operator, are wrong. Sensitive experimental criteria for such an SU(3)-scalar term are listed and the very recently obtained experimental value of the branching ratio

\frac{(η^{'} \to ρ γ)}{(η^{'} \to ω γ)} = 9.9 \pm 2

is discussed.

Keywords

This publication has 10 references indexed in Scilit:

Generalization of the electromagnetic current operator
Physical Review D, 1978
Two-Body Decays of Vector and Pseudoscalar Mesons in a Broken SU(4) Scheme
Physical Review Letters, 1977
Observation of the Radiative Decay $η^{'} \to ω γ$ in the Reaction $π^{-} p \to π^{+} π^{-} 3 γ n$
Physical Review Letters, 1977
$D^{0 *} \to D^{0} γ$ and Other Radiative Decays of Vector Mesons
Physical Review Letters, 1977
Spectrum-generating SU(3) and the semileptonic decays of hyperons
Physical Review D, 1977
$η γ$ Decays of $ρ^{0}$ , $ω$ , and $ϕ$ Mesons
Physical Review Letters, 1977
Ponicaré group, $V - A$ , and SU(3) as spectrum-generating group in leptonic decays
Physical Review D, 1976
Production of $ρ^{-}$ in the Nuclear Coulomb Field
Physical Review Letters, 1974
Nondivergent Radiation of Discrete Frequencies in Continuous X-Ray Spectrum
Physical Review Letters, 1974
Does the Electromagnetic Current Have a Unitary Singlet Component?
Physical Review B, 1969