The decays τ→ (η,η') K^- ν_τ in the extended Nambu-Jona-Lasinio model

2016/02/16 by M. K. Volkov, Volkov, M. K., А. А. Pivovarov +1
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1602.04970

openalex publication_date 2016/02/16 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

The decays τ→ (η,η') K^- ν_τ 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 channels, the subprocesses with intermediate K^*(892) and K^*(1410) mesons play the main role. In the scalar channels, the subprocesses with intermediate K₀^*(800) and K₀^*(1430) mesons are taken into account. Scalar channels play a less important role in calculation of the full width of the decay τ→ (η,η') K^- ν_τ. The obtained results are in satisfactory agreement with the experimental data.

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