We explore the possibility of producing the observed matter-antimatter asymmetry of the
Universe uniquely from the evaporation of primordial black holes (PBHs) that are formed in …

A bstract The relic density of Dark Matter (DM) in the freeze-in scenario is highly dependent
on the evolution history of the universe and changes significantly in a non-standard (NS) …

We study the impact of thermalization and number-changing processes in the dark sector on
the yield of gravitationally produced dark matter (DM). We take into account the DM …

We study the possibility of cogenesis of baryon and dark matter (DM) from the out-of-
equilibrium CP violating decay of right handed neutrino (RHN) that are dominantly of non …

Inflaton seeds nonthermal leptogenesis by pair-producing right-handed neutrinos in the
seesaw model. We show that the inevitable graviton bremsstrahlung associated with inflaton …

Standard Model (SM) of particle physics has achieved enormous success in describing the
interactions among the known fundamental constituents of nature, yet it fails to describe …

Detecting dark matter (DM) relic via freeze-in is difficult in laboratories due to smallness of
the couplings involved. However, a non-standard cosmological history of the Universe, prior …

We study the freeze-in production of vector dark matter (DM) in a classically scale invariant
theory, where the Standard Model (SM) is augmented with an abelian U (1) X gauge …

A bstract We show that a minimal scenario, utilizing only the graviton as an intermediate
messenger between the inflaton, the dark sector and the Standard Model (SM), is able to …

Since the gravitational interaction is universal, any particle that ever existed, if kinematically
accessible, has to be produced through her. We explore the possibility that dark matter is …