{rho}({omega}) {sup {yields} {pi}0{pi}0{gamma}}, {rho}({omega}) {sup {yields} {eta}{pi}0{gamma}} decays in the local quark Nambu-Jona-Lasinio model

Journal Article · Fri Aug 15 04:00:00 EDT 2008 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778808080206· OSTI ID:21402510

The branching ratios and photon spectra of the rare processes {rho}({omega}) {sup {yields} {pi}0{pi}0{gamma}}, {rho}({omega}) {sup {yields} {eta}{pi}0{gamma}} are calculated in the framework of the standard local quark Nambu-Jona-Lasinio model. Three types of diagrams are considered: the quark box and the pole diagrams with scalar ({sigma}, {alpha}{sub 0}(980)) and vector ({rho}, {omega}) mesons. The obtained estimates for the widths of the processes {rho}({omega}) {sup {yields} {pi}0{pi}0{gamma}} are in satisfactory agreement with existing experimental data. Predictions are made for the widths of the processes {rho}({omega}) {sup {yields} {eta}{pi}0{gamma}}.

• OSTI ID: 21402510
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 8 Vol. 71; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
BRANCHING RATIO
COMPOSITE MODELS
DATA
DECAY
DIAGRAMS
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HADRONS
HYPERONS
INFORMATION
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESONS
NUMERICAL DATA
OMEGA BARYONS
PARTICLE MODELS
PHOTONS
QUARK MODEL
QUARKS
SCALAR MESONS
SPECTRA
STRANGE PARTICLES
VECTOR MESONS