Decay of vector-vector resonances into {gamma} and a pseudoscalar meson

Journal Article · Sun May 01 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.094030· OSTI ID:21541617

Molina, R; Oset, E ^[1]; Nagahiro, H ^[2]; Hosaka, A ^[3]

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1. Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacion de Paterna, Apartado 22085, 46071 Valencia (Spain)
2. Department of Physics, Nara Women's University, Nara 630-8506 (Japan)
3. Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047 (Japan)

We study the decay of dynamically generated resonances from the interaction of two vectors into a {gamma} and a pseudoscalar meson. The dynamics requires anomalous terms involving vertices with two vectors and a pseudoscalar, which renders it special. We compare our result with data on K{sub 2}{sup *+}(1430){yields}K{sup +}{gamma} and K{sub 2}{sup *0}(1430){yields}K{sup 0}{gamma} and find a good agreement with the data for the K{sub 2}{sup *+}(1430) case and a width considerably smaller than the upper bound measured for the K{sub 2}{sup *0}(1430) meson. We also investigate the decay into {pi}{sup +{gamma}} of one a{sub 2} state, tentatively associated to the a{sub 2}(1320), obtaining qualitative agreement with data.

• OSTI ID: 21541617
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A2-1320 MESONS
BOSONS
COMPARATIVE EVALUATIONS
DECAY
ELEMENTARY PARTICLES
EVALUATION
HADRONS
INTERACTIONS
K*2-1430 MESONS
KAONS
KAONS NEUTRAL
KAONS PLUS
MESONS
PARTICLE DECAY
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
RESONANCE
STRANGE MESONS
STRANGE PARTICLES
TENSOR MESONS