Amit Dutta Banik

Two component WIMP-FImP dark matter model with singlet fermion, scalar and pseudo scalar

We explore a two component dark matter model with a fermion and a scalar. In this scenario the Standard Model (SM) is extended by a fermion, a scalar and an additional pseudo scalar. The fermionic component is assumed to have a global

Velocity-induced neutrino oscillation and its possible implications for long baseline neutrinos

\mathrm{U(1)}_\mathrm{DM}

Inert doublet dark matter with an additional scalar singlet and 125 GeV Higgs boson

U(1)DM and interacts with the pseudo scalar via Yukawa interaction while a

_{\rm H}

\mathbb {Z}_2

Extension of minimal fermionic dark matter model: a study with two Higgs doublet model

Z2 symmetry is imposed on the other component – the scalar. These ensure the stability of both dark matter components. Although the Lagrangian of the present model is CP conserving, the CP symmetry breaks spontaneously when the pseudo scalar acquires a vacuum expectation value (VEV). The scalar component of the dark matter in the present model also develops a VEV on spontaneous breaking of the