# NEUTRINO2010, XXIV International Conference on Neutrino Physics and Astrophysics, Athens, GREECE

14-19 June 2010
Europe/Athens timezone

## Supersymmetric model for neutrino masses with two dark matter candidates

Not scheduled
Aithousa Mitropoulos ()

### Aithousa Mitropoulos

Megaron, Athens - Greece

### Speaker

Prof. Daijiro Suematsu (Kanazawa University)

### Description

We discuss a supersymmetric extension of the radiative seesaw model for neutrino masses. The model can induce the tri-bimaximal neutrino mixing and have two dark matter candidates. One of them is the lightest neutralino appeared in the $R$-parity conserved MSSM. The other one is a right-handed neutrino with mass of O(1) TeV. The latter one is metastable and its longevity is guaranteed by a $Z_2$ subgroup of anomalous U(1)$_X$ gauge symmetry, which forbids the neutrino mass generation at tree level. The flavour structure causing both the tri-bimaximal mixing and the smallness of neutrino mass eigenvalues may be partially related to this anomalous U(1)$_X$. We study the phenomenology of the model such as the dark matter relic abundance, the lepton flavor violating processes and also the direct and indirect searches of dark matter.

### Primary author

Prof. Daijiro Suematsu (Kanazawa University)

### Co-authors

Takashi Toma (Kanazawa University) Tetsuro Yoshida (Kanazawa University)

### Presentation Materials

There are no materials yet.