117 citations · 368 across the 21 of their papers we have counts for
22 papers
Bayesian Forecasts on Cosmic Superstring Searches with LISA
Satyabrata Datta, Rome Samanta
Cosmic superstrings are well-motivated early-Universe sources of stochastic gravitational waves, with phenomenology controlled by the string tension and the intercommutation p…
LISA Reconstruction Landscape for Metastable Cosmic Strings
Satyabrata Datta, Rome Samanta
We study reconstruction of stochastic gravitational-wave backgrounds from metastable cosmic strings with the Laser Interferometer Space Antenna (LISA). In the vacuum-tunneling benc…
Mapping Domain-Wall Bayesian Reconstruction with LISA
Satyabrata Datta, Rome Samanta
We study the Bayesian reconstruction of peaked domain-wall gravitational-wave signals at LISA and construct reconstruction maps over the signal-parameter plane. These maps identify…
PTA-Compatible Domain Walls at LISA and Taiji: Bayesian Reconstruction and Multiband Inference
Satyabrata Datta, Rome Samanta
Domain walls provide an excellent fit to Pulsar Timing Array (PTA) data. A distinctive feature of the associated gravitational-wave (GW) spectrum is its ultraviolet (UV) tail, whic…
Probing thermal leptogenesis and dark matter through primordial gravitational waves from a supercooled universe
Peter Athron, Satyabrata Datta, Zhao-Yang Zhang
We explore the cosmological dynamics of a supercooled first-order phase transition in the classically conformal extension of the Standard Model, where radiative symmet…
Gravitational Wave Spectral Shapes as a probe of Long Lived Right-handed Neutrinos, Leptogenesis and Dark Matter: Global versus Local B-L Cosmic Strings
Satyabrata Datta, Anish Ghoshal, Angus Spalding +1
The scale of the seesaw mechanism is typically much larger than the electroweak scale. This hierarchy can be naturally explained by symmetry, which after spontaneous s…
Multifaceted Supercooling: From PTA to LIGO
Satyabrata Datta, Rome Samanta
Supercooled phase transitions, as predicted, e.g., in near-conformal and confining extensions of the Standard Model (SM), are established sources of strong stochastic gravitational…
Complementarity between Cosmic String Gravitational Waves and long-lived particle searches in a laboratory
Satyabrata Datta, Ambar Ghosal, Anish Ghoshal +1
Cosmic strings are powerful witnesses to cosmic events including any period of early matter domination. If such a period of matter domination was catalysed by metastable, long-live…
Impact of memory-burdened black holes on primordial gravitational waves in light of Pulsar Timing Array
Peter Athron, Marco Chianese, Satyabrata Datta +2
Blue-tilted Gravitational Waves (BGWs) have been proposed as a potential candidate for the cosmic gravitational waves detected by Pulsar Timing Arrays (PTA). In the standard cosmol…
Cosmic superstrings, metastable strings and ultralight primordial black holes: from NANOGrav to LIGO and beyond
Satyabrata Datta, Rome Samanta
While topologically stable cosmic strings are disfavoured by the recent observation of nHz stochastic gravitational waves (GW) by Pulsar Timing Arrays (PTA), e.g., NANOGrav, cosmic…
Probing flavored regimes of leptogenesis with gravitational waves from cosmic strings
Marco Chianese, Satyabrata Datta, Gennaro Miele +2
Cosmic strings radiate detectable gravitational waves in models featuring high-scale symmetry breaking, e.g., high-scale leptogenesis. In this Letter, for the first time, we show t…
Tomography of flavoured leptogenesis with primordial blue gravitational waves
Marco Chianese, Satyabrata Datta, Rome Samanta +1
We explore a scenario where an early epoch of matter domination is driven by the mass scale of the right-handed neutrinos, which also characterizes the different flavour regi…
Explaining PTA Data with Inflationary GWs in a PBH-Dominated Universe
Satyabrata Datta
We show that an ultralight primordial black hole (PBH) dominated phase makes blue-tilted inflationary gravitational waves (BGW) compatible with the recent detection of an nHz stoch…
Fingerprint of GeV scale right-handed neutrinos on inflationary gravitational waves and PTA data
Satyabrata Datta, Rome Samanta
We show that the seesaw mechanisms that exhibit right-handed neutrino mass-dependent non-standard post-inflationary cosmology make blue-tilted inflationary gravitational waves (GW)…
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…
Lattice study of a magnetic contribution to heavy quark momentum diffusion
D. Banerjee, S. Datta, M. Laine
Heavy quarks placed within a hot QCD medium undergo Brownian motion, characterized by specific transport coefficients. Their determination can be simplified by expanding them in $T…
Probing Leptogenesis and Pre-BBN Universe with Gravitational Waves Spectral Shapes
Rome Samanta, Satyabrata Datta
On the frequency-amplitude plane, Gravitational Waves (GWs) from cosmic strings show a flat plateau at higher frequencies due to the string loop dynamics in standard radiation domi…
Baryogenesis from ultralight primordial black holes and strong gravitational waves from cosmic strings
Satyabrata Datta, Ambar Ghosal, Rome Samanta
Ultralight primordial black holes (PBHs)(g) completely evaporate via Hawking radiation (HR) and produce all the particles in a given theory regardless of their other…
Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis: cosmic strings
Rome Samanta, Satyabrata Datta
In seesaw mechanism, if right handed (RH) neutrino masses are generated dynamically by a gauged symmetry breaking, a stochastic gravitational wave background (SGWB) sourced…
Flavour effects in gravitational leptogenesis
Rome Samanta, Satyabrata Datta
Within the Type-I seesaw mechanism, quantum effects of the right-handed (RH) neutrinos in the gravitational background lead to an asymmetric propagation of lepton and anti-leptons…
A radiative Type-II seesaw model with broken Symmetry Ansatz
Satyabrata Datta, Ambar Ghosal
Parametrization of the neutrino mass matrix in terms of well-known measured quantities is an attractive way to obtain a phenomenologically viable form. We propose a model of neutri…
Meson screening masses from lattice QCD with two light and the strange quark
M. Cheng, S. Datta, A. Francis +12
We present results for screening masses of mesons built from light and strange quarks in the temperature range of approximately between 140 MeV to 800 MeV. The lattice computations…