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Sensitivities of one-prong tau branching fractions to tau neutrino mass, mixing, and anomalous charged current couplings

Maria Teresa Dova·John Swain·Lucas Taylor
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Abstract

We analyse the sensitivities of exclusive one-prong tau branching fractions to: the tau neutrino mass; its mixing with a fourth generation neutrino; the weak charged current magnetic and electric dipole moments of the tau; and the Michel parameter $η$. Quantitative constraints are derived from current experimental data and the future constraints derivable from tau-charm factory measurements are estimated. The anomalous coupling constraints are used to constrain the tau compositeness scale and the allowed parameter space for Higgs doublet models.

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Maria Teresa Dova, John Swain, Lucas Taylor. 1999-03-22. Sensitivities of one-prong tau branching fractions to tau neutrino mass, mixing, and anomalous charged current couplings. https://arxiv.org/abs/hep-ph/9903430

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