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The second-class current decays $τ \to π η (η^{'}) ν_{τ}$ in the NJL model including the interaction of mesons in the final state

M. K. Volkov

Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Moscow region, Russia

E-mail Address: [email protected]

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K. Nurlan

Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Moscow region, Russia

The Institute of Nuclear Physics, Ministry of Energy of the Republic of Kazakhstan, Almaty, 050032, Kazakhstan

Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan

E-mail Address: [email protected]

Corresponding author.

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, and

A. A. Pivovarov

Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Moscow region, Russia

E-mail Address: [email protected]

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https://doi.org/10.1142/S0217751X21502092Cited by:1 (Source: Crossref)

Abstract

The effect of the interaction of mesons in the final state is additionally considered within the description of $τ \to π η (η^{'}) ν_{τ}$ decays. This interaction is taken into account at the level of production of intermediate pions. One of them, in turn, might be transited into $η$ or $η^{'}$ mesons. Our results do not exceed the experimentally established branching fractions, and they are in agreement with the results of other theoretical studies.

Keywords:

PACS: 13.35.Dx, 12.39.Fe

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Vol. 36, No. 27

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History

Received 10 July 2021

Accepted 23 September 2021

Published: 19 October 2021

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The second-class current decays $τ \to π η (η^{'}) ν_{τ}$ in the NJL model including the interaction of mesons in the final state

Abstract

References

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The second-class current decays τ → πη(η′)ντ in the NJL model including the interaction of mesons in the final state

Abstract

References

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The second-class current decays $τ \to π η (η^{'}) ν_{τ}$ in the NJL model including the interaction of mesons in the final state