81 citations · 413 across the 31 of their papers we have counts for
8 papers · 1 filter
Is leptogenesis during gravitational reheating flavourful?
Basabendu Barman, Arghyajit Datta, Md Riajul Haque
We examine the impact of charged lepton Yukawa equilibration on leptogenesis during gravitational reheating. During the post-inflationary era, the inflaton field is assumed to osci…
Memory burden effect mimics reheating signatures on SGWB from ultra-low mass PBH domination
Nilanjandev Bhaumik, Md Riajul Haque, Rajeev Kumar Jain +1
Ultra-low mass primordial black holes (PBH), briefly dominating the expansion of the universe, would leave detectable imprints in the secondary stochastic gravitational wave backgr…
Thermal and nonthermal dark matters with gravitational neutrino reheating
Md Riajul Haque, Debaprasad Maity, Rajesh Mondal
We have discussed in detail how neutrinos produced from inflaton solely through gravitational interaction can successfully reheat the universe. For this, we have introduced the wel…
Probing the early universe with future GW observatories
Suvashis Maity, Md Riajul Haque
One of the fundamental characteristics of slow roll inflation is its generation of tensor perturbations, which manifest as stochastic gravitational waves (GWs). Slow roll inflation…
Gravitational wave signatures of cogenesis from a burdened PBH
Basabendu Barman, Md Riajul Haque, Óscar Zapata
We explore the possibility of explaining the observed dark matter (DM) relic abundance, along with matter-antimatter asymmetry, entirely from the evaporation of primordial black ho…
Quantum effects on the evaporation of PBHs: contributions to dark matter
Md Riajul Haque, Suvashis Maity, Debaprasad Maity +1
We compute the relic abundance of dark matter in the presence of Primordial Black Holes (PBHs) beyond the semiclassical approximation. We take into account the quantum corrections…
Constraining the history of reheating with the NANOGrav 15-year data
Suvashis Maity, Nilanjandev Bhaumik, Md Riajul Haque +2
Over the last few years, primordial black holes (PBHs) have emerged as a strong candidate for cold dark matter. A significant number of PBHs are produced when the strength of the p…
Leptogenesis, primordial gravitational waves, and PBH-induced reheating
Basabendu Barman, Suruj Jyoti Das, Md Riajul Haque +1
We explore the possibility of producing the observed matter-antimatter asymmetry of the Universe uniquely from the evaporation of primordial black holes (PBH) that are formed in an…