Type II Radiative Seesaw Model of Neutrino Mass with Dark Matter

Abstract

We consider a model of neutrino mass with a scalar triplet $({\xi }^{++},{\xi }^{+},{\xi }^0)$ assigned lepton number $L=0$, so that the tree-level Yukawa coupling ${\xi }^0{\nu }_i{\nu }_j$ is not allowed. It is generated instead through the interaction of $\xi$ and $\nu$ with dark matter and the soft breaking of $L$ to $(-1{)}^L$. We discuss the phenomenological implications of this model, including ${\xi }^{++}$ decay and the prognosis of discovering the dark sector at the Large Hadron Collider.

12 pages, 5 figures, one figure updated, comments added. arXiv admin note: text overlap with arXiv:1502.02200

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