V sup 0 r arrow P sup 0 P sup 0. gamma. decay rates

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.42.2392· OSTI ID:6313725

Fajfer, S ^[1]; Oakes, R J ^[2]

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1. Institute of Physics, University of Sarajevo, Sarajevo (Yugoslavia)
2. Department of Physics and Astronomy, Northwestern University, Evanston, IL (USA)

The radiative decay processes of the type {ital V}{sup 0}{r arrow}{ital P}{sup 0}{ital P}{sup 0}{gamma} are described by the gauged Wess-Zumino terms in a low-energy effective Lagrangian, there being no bremsstrahlung contributions. Using such an effective Lagrangian, describing pseudoscalar and vector mesons, we have calculated the branching ratios for the decays {omega}{r arrow}{pi}{sup 0}{pi}{sup 0}{gamma}, {omega}{r arrow}{pi}{sup 0}{eta}{gamma}, {rho}{r arrow}{pi}{sup 0}{pi}{sup 0}{gamma}, {rho}{r arrow}{pi}{sup 0}{eta}{gamma}, {phi}{r arrow}{pi}{sup 0}{pi}{sup 0}{gamma}, {phi}{r arrow}{pi}{sup 0}{eta}{gamma}, and {phi}{r arrow}{ital K}{sup 0}{ital {bar K}}{sup 0}{gamma}. Since scalar mesons have been neglected, these rates provide estimates of the expected backgrounds in searches for {ital J}{sup {pi}}=0{sup +} resonances, particularly the possible four-quark states in {phi} decays.

• OSTI ID: 6313725
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 42:7; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A0-980 MESONS
BARYONS
BOSONS
BRANCHING RATIO
CHIRAL SYMMETRY
COUPLING CONSTANTS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
HYPERONS
KAONS
KAONS NEUTRAL
LAGRANGIAN FUNCTION
MESONS
OMEGA BARYONS
OMEGA PARTICLES
PARTICLE PRODUCTION
PIONS
PIONS MINUS
PIONS NEUTRAL
PIONS PLUS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARKS
RADIATIVE DECAY
SCALAR MESONS
STRANGE MESONS
STRANGE PARTICLES
SYMMETRY
VECTOR MESONS