Probing lepton-number and lepton-flavor violation in semileptonic τ decays into two mesons

Ilakovac, Amon (1996) Probing lepton-number and lepton-flavor violation in semileptonic τ decays into two mesons. Physical Review D, 54 (9). pp. 5653-5673. ISSN 1550-7998

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Abstract

The evaluation, systematic analysis, and numerical study of the semileptonic τ-lepton decays with two mesons in the final state has been made in the frame of the standard model extended by right-handed neutrinos. In the analysis, heavy-neutrino nondecoupling effects, finite quark masses, quark and meson mixings, finite widths of vector mesons, chiral symmetry breakings in vector-meson-pseudoscalar-meson vertices, and effective Higgs-boson-pseudoscalar-meson couplings have been included. Numerical estimates reveal that the decays τ−→e−π−π+, τ−→e−K−K+, and τ−→e−K0K¯0 have branching ratios of the order of 10−6, close to present-day experimental sensitivities.

Item Type: Article
Keywords: tau leptons, mesons, neutrinos, chiral symmetry breaking, Higgs boson
Date: November 1996
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (1996) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119222
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 14 May 2014 17:49
Last Modified: 20 Oct 2014 15:27
URI: http://digre.pmf.unizg.hr/id/eprint/1333

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