Three-meson τ decays involving kaons and η mesons in the NJL model

2023/07/18 by Volkov, M. K., Pivovarov, A. A., Nurlan, K.
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2307.09228

Abstract

Branching fractions of decays τ→ K⁰ π^- ην_τ, τ→ K^- π⁰ ην_τ, τ→ K^-K⁰ ην_τ and τ→ K^- ηην_τ are calculated in the U(3)× U(3) chiral NJL quark model. The contact, vector, axial-vector and pseudoscalar channels are considered. It is shown that the axial vector channel is dominant. The obtained results are in satisfactory agreement with experiment.

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