Strong and radiative decays of the scalars f0(980) and a0(980) in a hadronic molecule approach

Details Strong and radiative decays of the scalars f0(980) and a0(980) in a hadronic molecule approach Strong and radiative decays of the scalars f0(980) and a0(980) in a hadronic molecule approach

2008-08-05

arxiv.org/abs/0808.0705v3

Phys.Rev.d78:114004,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 6 figures, typos corrected, accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.78.114004

We analyze the electromagnetic and strong decay properties of the light scalars a0(980) and f0(980) within a hadronic molecule interpretation. Both scalars are discussed within a covariant and gauge invariant model which also allows for finite size effects due to their spatially extended structure in the K Kbar-bound state picture. Allowing for f0-a0 mixing we also study its influence on the radiative decays f0/a0 to gamma gamma, f0/a0 to gamma omega, and f0/a0 to gamma rho as well as the phi production of the f0 and a0. Furthermore, we apply our formalism to describe the strong f0 to pi pi and a0 to pi eta decay properties.

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