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Superheavy Majorana neutrino effects in the lepton-number violating e- + e- -> mu- + mu- process

X. Y. Pham
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Abstract

In the minimal extension of the standard electroweak theory with ultra massive Majorana neutrinos, the process e- + e- -> mu- + mu- could be observable, in sharp contrast with the reaction e- + e- -> W- + W- which is entirely controlled by neutrinoless double beta decay $ββ_{0 ν}$ data. Our result provides the process background that must be confronted "new physics" models which postulate doubly charged particles, such as the gauge bilepton Y^{-} in the $SU(3)_{\rm c} \times SU(3)_{\rm L} \times U(1)$ model, the left-right $SU(2)_{\rm L} \times SU(2)_{\rm R} \times U(1)_{\rm B-L}$ one, and its supersymmetric version with doubly charged Higgs multiplets.

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X. Y. Pham. 2000-05-02. Superheavy Majorana neutrino effects in the lepton-number violating e- + e- -> mu- + mu- process. https://doi.org/10.1016/s0370-2693(00)01208-9

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