299 citations · 868 across the 43 of their papers we have counts for
8 papers · 1 filter
Non-thermal Origin of Asymmetric Dark Matter from Inflaton and Primordial Black Holes
Basabendu Barman, Debasish Borah, Suruj Jyoti Das +1
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-therma…
Freeze-in Dark Matter Through Forbidden Channel in
Partha Konar, Rishav Roshan, Sudipta Show
We examine a scenario for freeze-in production of dark matter, which occurs due to the large thermal correction to the mass of a decaying mediator particle present in the thermal b…
Scalar Triplet Flavor Leptogenesis with Dark Matter
Arghyajit Datta, Rishav Roshan, Arunansu Sil
We investigate a simple variant of type-II seesaw, responsible for neutrino mass generation, where the particle spectrum is extended with one singlet right-handed neutrino and an i…
Non-minimally Coupled Vector Boson Dark Matter
Basabendu Barman, Nicolás Bernal, Ashmita Das +1
We consider a simple abelian vector dark matter (DM) model, where {\it only} the DM couples non-minimally to the scalar curvature of the backg…
Symmetry origin of Baryon Asymmetry, Dark Matter and Neutrino Mass
Subhaditya Bhattacharya, Rishav Roshan, Arunansu Sil +1
We propose a minimal model based on lepton number symmetry (and violation), to address a common origin of baryon asymmetry, dark matter and neutrino mass generation. The model cons…
Imprint of the seesaw mechanism on feebly interacting dark matter and the baryon asymmetry
Arghyajit Datta, Rishav Roshan, Arunansu Sil
We show that the type-I seesaw, responsible for generating the light neutrino mass, itself is capable of accommodating one of the three right handed neutrinos as a freeze-in type o…
Non-thermal leptogenesis and UV freeze-in of dark matter: impact of inflationary reheating
Basabendu Barman, Debasish Borah, Rishav Roshan
We study a minimal scenario to realize non-thermal leptogenesis and UV freeze-in of a Standard Model (SM) gauge singlet fermionic dark matter (DM) simultaneously, with inflaton fie…
Two Component Doublet-Triplet Scalar Dark Matter stabilising the Electroweak vacuum
Nabarun Chakrabarty, Rishav Roshan, Arunansu Sil
A two-component scalar DM scenario comprising an additional scalar doublet and a = 0 scalar triplet is proposed. Key features of the ensuing dark matter phenomenology are highl…