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arXiv · 1103.2993

Tensor mesons produced in tau lepton decays

G. Lopez Castro·J. H. Munoz
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Abstract

Light tensor mesons (T = a_2, f_2 and K_2^*) can be produced in decays of tau leptons. In this paper we compute the branching ratios of tau --> T pi nu decays by assuming the dominance of intermediate virtual states to model the form factors involved in the relevant hadronic matrix element. The exclusive f_2(1270) pi^- decay mode turns out to have the largest branching ratio, of O(10^-4) . Our results indicate that the contributions of tensor meson intermediate states to the three-pseudoscalar channels of tau decays are rather small.

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G. Lopez Castro, J. H. Munoz. 2011-04-28. Tensor mesons produced in tau lepton decays. https://doi.org/10.1103/physrevd.83.094016

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