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Implications of a very light pseudoscalar boson on lepton flavor violation

Adriana Cordero-Cid·G. Tavares-Velasco·J. J. Toscano
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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 γγ, and l_i --> l_j e^+ e^- transitions are investigated. Assuming 2 m_e < m_ϕ l_j γγ) l_j e^+ e^-) is hold. The experimental constraints on the decays l_i --> l_j γ, l_i --> l_j l_k l_k, and l_i --> l_j γγare used to bound the ϕl_i l_j couplings.

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Adriana Cordero-Cid, G. Tavares-Velasco, J. J. Toscano. 2005-11-29. Implications of a very light pseudoscalar boson on lepton flavor violation. https://doi.org/10.1103/physrevd.72.117701

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