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arXiv · 0808.1523

Two-loop neutrino masses with large R-parity violating interactions in supersymmetry

Paramita Dey·Anirban Kundu·Biswarup Mukhopadhyaya·Soumitra Nandi
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Abstract

We attempt to reconcile large trilinear R-parity violating interactions in a supersymmetric (SUSY) theory with the observed pattern of neutrino masses and mixing. We show that, with a restricted number of such interaction terms with the $λ'$-type couplings in the range (0.1-1.0), it is possible to forbid one-loop contributions to the neutrino mass matrix. This is illustrated with the help of a `working example' where an econnomic choice of SUSY parameters is made, with three non-vanishing and `large' R-parity violating terms in the superpotential. The two-loop contributions in such a case can not only generate the masses in the requisite order but can also lead us to specific allowed regions of the parameter space.

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Paramita Dey, Anirban Kundu, Biswarup Mukhopadhyaya, Soumitra Nandi. 2008-12-30. Two-loop neutrino masses with large R-parity violating interactions in supersymmetry. https://doi.org/10.1088/1126-6708%2F2008%2F12%2F100

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