Implications of a very light pseudoscalar boson on lepton flavor violation
High Energy Physics - Phenomenology
2011-03-31 v1
Abstract
A long-lived very light pseudoscalar boson would favor lepton flavor violating transitions of charged leptons. Its implications on the l_i --> l_j \gamma \gamma, and l_i --> l_j e^+ e^- transitions are investigated. Assuming 2 m_e < m_\phi <m_\mu, it is found that the inequality B(l_i --> l_j \gamma \gamma)<B(l_i --> l_j e^+ e^-) is hold. The experimental constraints on the decays l_i --> l_j \gamma, l_i --> l_j l_k l_k, and l_i --> l_j \gamma \gamma are used to bound the \phi l_i l_j couplings.
Cite
@article{arxiv.hep-ph/0511331,
title = {Implications of a very light pseudoscalar boson on lepton flavor violation},
author = {Adriana Cordero-Cid and G. Tavares-Velasco and J. J. Toscano},
journal= {arXiv preprint arXiv:hep-ph/0511331},
year = {2011}
}
Comments
6 pages, 3 figures, REVTEX style