Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
Volume 24, Issue 14, Pages 2629-2638Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217751X09044632
Keywords
Radiative meson decays; Nambu-Jona-Lasinio model
Categories
Funding
- INTAS [05-1000008-8528]
- Slovak Grant Agency for Sciences VEGA [2/7116/27]
Ask authors/readers for more resources
Radiative decays of pseudoscalar and vector mesons are calculated in the frames of chiral Nambu-Jona-Lasinio (NJL) model. We use triangle quark loops of anomalous type. During the evaluation of this loop integrals we used two methods. In the first method we neglect the dependence of external momenta. In that case we reproduce the Wess-Zumino-Witten terms of effective chiral meson Lagrangian. In the second method we take into account the momenta dependence of loop integrals omitting their imaginary part. This enables us to take into account quark confinement. The application of both methods are in qualitative agreement with each other and with experimental data. The second method allows us to describe the electron-positron annihilation with production pseudoscalar and vector mesons in center-of-mass energy range from 1 to 5 GeV. Comparisons with the recent experimental data are presented.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available