81 citations · 413 across the 31 of their papers we have counts for
11 papers · 1 filter
Signal-Aware Contrastive Latent Spaces for Anomaly Detection
Runze Li, Benjamin Nachman, Dennis Noll
High-dimensional feature spaces in particle physics events pose a fundamental challenge to density-estimation-based weakly supervised anomaly detection, whose fidelity degrades rap…
Burdening (or not) gravitational waves in the presence of primordial black holes
Mathieu Gross, Md Riajul Haque, Yann Mambrini
We present the spectrum of primordial gravitational wave (GW) expected from the presence of primordial black holes (PBH) and inflaton in the early Universe. For the first time, we…
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…
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…
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…
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…
Gravitational neutrino reheating
Md Riajul Haque, Debaprasad Maity, Rajesh Mondal
Despite having important cosmological implications, the reheating phase is believed to play a crucial role in cosmology and particle physics model building. Conventionally, the mod…
Primordial black hole versus inflaton
Md Riajul Haque, Essodjolo Kpatcha, Debaprasad Maity +1
We compare the dark matter(DM) production processes and its parameters space in the background of reheating obtained from two chief systems in the early Universe: the inflaton …
Primordial Black Hole Reheating
Md Riajul Haque, Essodjolo Kpatcha, Debaprasad Maity +1
Post-inflationary reheating phase is usually said to be solely governed by the decay of coherently oscillating inflaton into radiation. In this submission, we explore a new avenue…
Gravitational dark matter: free streaming and phase space distribution
Md Riajul Haque, Debaprasad Maity
Gravitational dark matter (DM) is the simplest possible scenario that has recently gained interest in the early universe cosmology. In this scenario, DM is assumed to be produced f…
Gravitational reheating
Md Riajul Haque, Debaprasad Maity
Our present understanding of the reheating phase is incomplete due to a lack of observations. Apart from its cosmological implications, the reheating should play a vital role in pa…