Radiative contribution to neutrino masses and mixing in $μν$SSM

Details Radiative contribution to neutrino masses and mixing in $μν$SSM Radiative contribution to neutrino masses and mixing in $μν$SSM

2010-02-13

arxiv.org/abs/1002.2705v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

51 pages, 14 figures (58 .eps files), expanded introduction, other minor changes, references added

Scientific paper

In an extension of the minimal supersymmetric standard model (popularly known as the $\mu\nu$SSM), three right handed neutrino superfields are introduced to solve the $\mu$-problem and to accommodate the non-vanishing neutrino masses and mixing. Neutrino masses at the tree level are generated through $R-$parity violation and seesaw mechanism. We have analyzed the full effect of one-loop contributions to the neutrino mass matrix. We show that the current three flavour global neutrino data can be accommodated in the $\mu\nu$SSM, for both the tree level and one-loop corrected analyses. We find that it is relatively easier to accommodate the normal hierarchical mass pattern compared to the inverted hierarchical or quasi-degenerate case, when one-loop corrections are included.

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