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- Title
Decays τ → (η, η') K-ν in the extended Nambu-Jona-Lasinio model.
- Authors
Volkov, M.; Pivovarov, A.
- Abstract
The decays τ → (η, η') K-ν are described in the framework of the extended Nambu-Jona-Lasinio model. Both full and differential widths of these decays are calculated. The vector and scalar channels are considered. In the vector channel, the subprocesses with the intermediate K*(892) and K*(1410) mesons play the main role. In the scalar channel, the subprocesses with the intermediate and K(800) and K(1430) mesons are taken into account. The scalar channel gives an insignificant contribution to the full width of the decay τ → η K-ν. The obtained results are in satisfactory agreement with the experimental data. The prediction for the width of the process τ → η′ K-ν is made.
- Subjects
NAMBU-Jona-Lasinio model; MESON decay; INTERMEDIATES (Chemistry); PREDICTION models; CHANNEL flow
- Publication
JETP Letters, 2016, Vol 103, Issue 10, p613
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364016100106