Implications of Fermionic Dark Matter on recent neutrino oscillation data
26 Dec 2016
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Singirala Shivaramakrishna
We investigate flavor phenomenology and dark matter in the context of
scotogenic model. In this model, the neutrino masses are generated through
radiative corrections at one-loop level...Considering the neutrino mixing matrix
to be of tri-bimaximal form with additional perturbations to accommodate the
recently observed non-zero value of reactor mixing angle $\theta_{13}$, we
obtain the relation between various neutrino oscillation parameters and the
model parameters. Working in degenerate heavy neutrino mass spectrum, we obtain
light neutrino masses obeying normal hierarchy and also study the relic
abundance of fermionic dark matter candidate including co-annihilation effects. A viable parameter space is thus obtained, consistent with neutrino oscillation
data, relic abundance and various lepton flavor violating decays such as
$\ell_\alpha\to\ell_\beta\gamma$ and $\ell_\alpha \to 3 \, \ell_\beta$.(read more)