A bstract We study the freeze-in production of Feebly Interacting Massive Particle (FIMP)
dark matter candidates through a neutrino portal. We consider a hidden sector comprised of …

A bstract We propose an appealing alternative scenario of leptogenesis assisted by dark
sector which leads to the baryon asymmetry of the Universe satisfying all theoretical and …

We examine the impact of a faster expanding Universe on the phenomenology of scalar
dark matter (DM) associated with SU (2) L multiplets. Earlier works with a radiation …

We discuss how a post-inflationary reheating phase characterized by a nonstandard
multiple scalar field cosmology can change the thermal history of the Universe, affecting …

With the consideration of a fast expanding Universe in effect due to an additional scalar field,
we present a study of leptogenesis in non-standard cosmology. The Hubble expansion rate …

We present an appealing alternative scenario of leptogenesis assisted by dark sector which
leads to the baryon asymmetry of the Universe satisfying all theoretical and experimental …