We explore the possibility of probing freeze-in dark matter (DM) produced via the right-
handed neutrino (RHN) portal using the RHN search experiments. We focus on a simplified …

The basic idea of this work is to achieve the observed relic density of a non-thermal dark
matter (DM) and its connection with Cosmic Microwave Background (CMB) via additional …

We study the possibility of testing a dark matter (DM) scenario embedded in a global lepton
number symmetry U (1) L via gravitational waves (GWs) and cosmic microwave background …

We study the possibility of detecting dark radiation (DR) produced by a combination of
interactions with the thermal bath and ultralight primordial black hole (PBH) evaporation in …

A bstract In this paper, we investigate the common parameter space of dark matter and
leptogenesis in the U (1) B− L symmetry. This model involves a complex scalar ϕ, sterile …

The Dirac scotogenic model provides an elegant mechanism which explains small Dirac
neutrino masses and neutrino mixing, with a single symmetry simultaneously protecting the …

We study the possibility of probing the radiative Dirac seesaw model with dark sector
particles going inside the loop, popularly referred to as the Dirac scotogenic model via …

We propose a gauged U (1) BL version of the light Dirac neutrino portal dark matter. The U
(1) BL symmetry provides a UV completion by naturally accommodating three right-handed …

A bstract We study the possibility of generating light Dirac neutrino mass via scotogenic
mechanism where singlet-doublet fermion Dark Matter (DM) plays non-trivial role in …

In this paper, we put forward a connection between the self-interacting dark matter and the
Dirac nature of neutrinos. Our exploration involves a Z 4⊗ Z 4′ discrete symmetry, wherein …