95 citations · 589 across the 45 of their papers we have counts for
5 papers · 1 filter
PBH-infused seesaw origin of matter and unique gravitational waves
Debasish Borah, Suruj Jyoti Das, Rome Samanta +1
The Standard Model, extended with three right-handed (RH) neutrinos, is the simplest model that can explain light neutrino masses, the baryon asymmetry of the Universe, and dark ma…
Bremsstrahlung High-frequency Gravitational Wave Signatures of High-scale Non-thermal Leptogenesis
Anish Ghoshal, Rome Samanta, Graham White
Inflaton seeds non-thermal leptogenesis by pair producing right-handed neutrinos in the seesaw model. We show that the inevitable graviton bremsstrahlung associated with inflaton d…
Heating up Peccei-Quinn scale
Sabir Ramazanov, Rome Samanta
We discuss production of QCD axion dark matter in a novel scenario, which assumes time-varying scale of Peccei-Quinn symmetry breaking. The latter decreases as the Universe's tempe…
Gravitational Waves-Tomography of Low-Scale-Leptogenesis
Satyabrata Datta, Rome Samanta
A long-lived scalar field () which couples weakly to the right-handed (RH) neutrinos (), generates small RH neutrino masses () in Low-Scale-Leptogenesis (LSL) mecha…
Probing Miracle-less WIMP Dark Matter via Gravitational Waves Spectral Shapes
Debasish Borah, Suruj Jyoti Das, Abhijit Kumar Saha +1
We propose a novel probe of weakly interacting massive particle (WIMP) dark matter (DM) candidates of a wide mass range which fall short of the required annihilation rates to satis…