30 citations · 148 across the 16 of their papers we have counts for
8 papers · 1 filter
Leptogenesis in Brane-modified cosmology: Signatures in primordial gravitational waves
Amit Dutta Banik, Arnab Paul
We investigate the implications of brane-inspired modifications of the evolutionary history of the early universe on the process of baryogenesis via leptogenesis. A modified cosmic…
Cosmic inflation and in minimal gauged model
Arnab Paul, Sourov Roy, Abhijit Kumar Saha
The minimal gauge symmetry extended Standard Model (SM) is a well motivated framework that resolves the discrepancy between the theoretical prediction and experime…
Signatures of Non-thermal Dark Matter with Kination and Early Matter Domination: Gravitational Waves versus Laboratory Searches
Anish Ghoshal, Lucien Heurtier, Arnab Paul
The non-thermal production of dark matter (DM) usually requires very tiny couplings of the dark sector with the visible sector and therefore is notoriously challenging to hunt in l…
Inflection-point Inflation and Dark Matter Redux
Anish Ghoshal, Gaetano Lambiase, Supratik Pal +2
We investigate for viable models of inflation that can successfully produce dark matter (DM) from inflaton decay process, satisfying all the constraints from Cosmic Microwave Backg…
eV Hubble Scale Inflation with Radiative Plateau: Very light Inflaton, Reheating & Dark Matter in B-L Extensions
Anish Ghoshal, Nobuchika Okada, Arnab Paul
We study radiative plateau-like inflation \& Z-portal freeze-in fermionic dark matter (DM) in a minimal B-L extended model. The U(1) Higgs, responsible for heavy neu…
Radiative Plateau Inflation with Conformal Invariance: Dynamical Generation of Electroweak and Seesaw Scales
Anish Ghoshal, Nobuchika Okada, Arnab Paul
We investigate a scale-invariant scenario where the Standard Model (SM) is supplemented with a dark scalar which has gauge \& Yukawa interactions, with the couplings $g_{…
Shedding Light on Dark Matter and Neutrino Interactions from Cosmology
Arnab Paul, Arindam Chatterjee, Anish Ghoshal +1
In CDM cosmology, Dark Matter (DM) and neutrinos are assumed to be non-interacting. However, it is possible to have scenarios, where DM-neutrino interaction may be present, l…
Non-thermal production of Dark Matter after Inflation
Nicolás Bernal, Arindam Chatterjee, Arnab Paul
The existence of Dark Matter (DM) has been well established from various cosmological and astrophysical evidences. However, the particle properties of DM are largely undetermined a…