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Process {eta}{yields}{pi}{sup 0}{gamma}{gamma} in the Nambu-Jona-Lasinio model

Journal Article · · Physical Review. D, Particles Fields
;  [1]
  1. Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)

The decay width of the process {eta}{yields}{pi}{sup 0}{gamma}{gamma} is calculated in the framework of the Nambu-Jona-Lasinio model. The momentum dependence of quark loops is taken into account. Three types of diagrams are considered: quark box, scalar (a{sub 0}) and vector ({rho},{omega}) pole diagrams. The obtained estimations are in satisfactory agreement with recent experimental data.

OSTI ID:
20868071
Journal Information:
Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English