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Number of results

Journal

2010 | 8 | 4 | 580-586

Article title

Radiative decays of scalar mesons σ(600), f
0(980) and a
0(980) in the local Nambu-Jona-Lasinio model

Content

Title variants

Languages of publication

EN

Abstracts

EN
The two-photon decay widths of scalar mesons σ(600), f
0(980) and a
0(980) as well a
0 → ju(ω)γ and f
0 → ju(ω)γ are calculated in the framework of the local Nambu-Jona-Lasinio model. The contributions of the quark loops (Hartree-Fock approximation) and the meson loops (next 1/N
c-approximation where N
c is the number of colors) are taken into account. The values of these contributions, as we show, are of the same order of magnitude. For the f
0 decay the K-loop contribution plays the dominant role. The results for two-gamma decays are in satisfactory agreement with modern experimental data. The predictions for a
0 → ju(ω)γ and f
0 → ju(ω)γ widths are given.

Publisher

Journal

Year

Volume

8

Issue

4

Pages

580-586

Physical description

Dates

published
1 - 8 - 2010
online
22 - 5 - 2010

Contributors

  • Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia
author
  • Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia
  • Joint Institute for Nuclear Research, Joliot-Curie 6, 141980, Dubna, Russia

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11534-009-0131-8
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