The role of sigma-meson in omega -> pi pi gamma decays and the coupling constant g(omega sigma gamma)


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Gokalp A., Yilmaz O.

PHYSICS LETTERS B, cilt.494, ss.69-74, 2000 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

We study the omega --> pi pi gamma decays by adding to the amplitude calculated within the framework of chiral perturbation theory and vector meson dominance the amplitude of sigma -meson intermediate state. We estimate the coupling constant g(omega sigma gamma) utilizing the experimental value of the omega --> pi (0)pi (0)gamma decay rate. (C) 2000 Elsevier Science B.V. All rights reserved.