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Vector-meson-dominance model for radiative decays involving light scalar mesons

✍ Scribed by Deirdre Black; Masayasu Harada; Joseph Schechter

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
341 KB
Volume
121
Category
Article
ISSN
0920-5632

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✦ Synopsis

We present a vector dominance model to describe radiative decays involving the light scalar mesons. Assuming that the light scalar mesons form a nonet this model gives relations among various decay amplitudes of the form S + yy, V -+ Sy and S ---f Vy, where S and V denote scalar and vector mesons. By comparing with experimental radiative decay rates, including those recently measured for 4 -+ PP'y, we obtain a fairly large number of predictions.

We discuss briefly ongoing extensions of the present work in an attempt to describe the radiative C$ decay measurements in detail.

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