Abstract
The calculation results of widths of the decays \(\tau \to {{a}_{1}}\pi {{\nu }_{\tau }}\), \(\tau \to {{K}_{1}}\pi {{\nu }_{\tau }}\), and \(\tau \to {{K}_{1}}K{{\nu }_{\tau }}\) and of the cross sections of the processes \({{e}^{ + }}{{e}^{ - }} \to {{a}_{1}}\pi \) and \({{e}^{ + }}{{e}^{ - }} \to {{K}_{1}}K\) carried out as part of the extended Nambu–Jona-Lasinio (NJL) model are presented. Due to the absence of the appropriate experimental values, the results should be considered predictions. A comparison of the calculated widths of these tau decays to the results of other authors is carried out.
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Volkov, M.K., Pivovarov, A.A. & Nurlan, K. Processes τ → (a1π, K1π, K1K)ντ and e+e– → (a1π, K1K) in the NJL Model. Phys. Part. Nuclei Lett. 20, 263–267 (2023). https://doi.org/10.1134/S154747712303069X
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DOI: https://doi.org/10.1134/S154747712303069X