Right handed sneutrino dark matter in inverse and linear seesaw scenarios

18th International Symposium on Particles Strings and Cosmology

De Romeri, Valentina^1

AHEP Group, Instituto de Física Corpuscular-C.S.I.C., Universitat de València Edificio de Institutos de Paterna, Apartado 22085, E-46071 València, Spain^1

关键词: Charged leptons;    Direct detection;    Minimal supersymmetric standard models;    Model spaces;    Neutrino mass;    Right handed;    Seesaw mechanism;    Supersymmetric models;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/485/1/012028/pdf
DOI  :  10.1088/1742-6596/485/1/012028

来源: IOP

【 摘 要 】

We consider supersymmetric models in which the right-handed sneutrino is a viable WIMP dark matter candidate. These are either simple extensions of the Minimal Supersymmetric Standard Model or models with the addition of an extra U(1) group. All of them can explain small neutrino masses, through either the Inverse or the Linear Seesaw mechanism. We investigate the properties of the dark matter candidate naturally arising in these scenarios. We check for phenomenological bounds, such as correct relic abundance, consistency with direct detection cross section limits and laboratory constraints. Especially, we comment on limitations of the model space due to lepton flavour violating charged lepton decays.