Strong and radiative decays of the scalars f{sub 0}(980) and a{sub 0}(980) in a hadronic molecule approach

Journal Article · Mon Dec 01 04:00:00 EST 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.114004· OSTI ID:21250992

Branz, Tanja; Gutsche, Thomas; Lyubovitskij, Valery E ^[1]

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1. Institut fuer Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

We analyze the electromagnetic and strong decay properties of the light scalars a{sub 0}(980) and f{sub 0}(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 KK-bound state picture. Allowing for f{sub 0}-a{sub 0} mixing we also study its influence on the radiative decays f{sub 0}/a{sub 0}{yields}{gamma}{gamma}, f{sub 0}/a{sub 0}{yields}{gamma}{omega}, and f{sub 0}/a{sub 0}{yields}{gamma}{rho} as well as the {phi} production of the f{sub 0} and a{sub 0}. Furthermore, we apply our formalism to describe the strong f{sub 0}{yields}{pi}{pi} and a{sub 0}{yields}{pi}{eta} decay properties.

• OSTI ID: 21250992
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A0-980 MESONS
BOUND STATE
ELECTROMAGNETIC PARTICLE DECAY
F0-980 MESONS
GAMMA RADIATION
GAUGE INVARIANCE
MIXING
OMEGA PARTICLES
QUANTUM FIELD THEORY
RADIATIVE DECAY