The lepton flavor violating decays of vector mesons in the MRSSM

Abstract

Recently several new bounds of the lepton flavor violating decays of the neutral vector mesons $J/\psi$ and ${\rm Y}(nS)$ are reported from the experiments. In the work, we analyze these processes in the scenario of the minimal R-symmetric supersymmetric standard model by means of the effective Lagrangian method. The predicted branching ratios are affected by the mass insertion parameters ${\delta }^{ij}$ and the contributions from different parts are comparable. Taking account of the constraints on the mass insertion parameters from the experiments, the branching ratios for the most promising processes ${\rm Y}(nS)\to l\tau$ are predicted to be ten orders of magnitude smaller than the present experimental bounds.

arXiv comment18 pages, 10 figures

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