Muon conversion to an electron in nuclei in the minimal R-symmetric supersymmetric standard model

Abstract

We analyze the lepton flavor violating process μ-e conversion in the framework of the minimal R-symmetric supersymmetric standard model. The theoretical predictions are determined by considering the experimental constraint on parameter δ 12 from the lepton flavor violating decay μ → eγ. The predictions for CRðμ − e; nucleusÞ in nuclei are not sensitive to tan β or m A and take values in a narrow region. The numerical results show that γ penguins dominate the predictions on CRðμ − e; nucleusÞ, and the contribution from Higgs penguins is insignificant. The Z penguins and box diagrams are less dominant in the predictions on CRðμ − e; nucleusÞ in a large parameter region. For small squark mass parameter, the contribution from box diagrams is comparable with dipole contribution from γ penguins. The theoretical predictions on conversion rate CRðμ − e; nucleusÞ in an Al or Ti target can be enhanced close to the future experimental sensitivities and are very promising to be observed in near future experiments.

Lepton flavor violating decays of vector mesons in the MRSSM*

“…For small values of , the prediction for Z penguin changes quickly, since the branching ratios are proportional to the reciprocal of , and for the same reason, the prediction for Z penguin changes slowly for higher values of . This behavior is also observed for the conversion [38,71] and for the process [55], both of which gain the contribution from the similar Z penguin diagrams excluding the quark sector. ) are sensitive to mQ and mL.…”

A review: Wireless sensor network location

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