Tensor mesons produced in tau lepton decays
High Energy Physics - Phenomenology
2011-05-19 v2 High Energy Physics - Experiment
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.
Keywords
Cite
@article{arxiv.1103.2993,
title = {Tensor mesons produced in tau lepton decays},
author = {G. Lopez Castro and J. H. Munoz},
journal= {arXiv preprint arXiv:1103.2993},
year = {2011}
}
Comments
10 pages, 1 figure. Version accepted for publication in PRD, some typos are corrected and comments are added in section 4. Conclusions remain unchanged