Dark matter and neutrinos in Left-Right Mirror Model with Z2 symmetry

Abstract

We discussed the feasibility of including dark matter in the Left-Right Mirror Model with an additional discrete Z2 symmetry. The Z2 symmetry helps to prevent any decay of the possible dark matter candidate, that is, guarantees the stability of the dark matter. The dark matter candidate is proposed as the lightest mirror neutrino. This Z2 discrete symmetry not only guarantees the stability of the dark matter but also controls the free parameters of the model such that they are significantly reduced. Then, mass spectrum of neutrinos is also discussed in two possible scenarios obtained by assigning charge under  Z2 symmetry. For one of the scenarios we obtain the relic density for the dark matter candidate and the spin independent scattering cross section between dark matter and proton (neutron).