64 citations · 214 across the 24 of their papers we have counts for
24 papers
Cosmological implications for hairy black holes via spontaneous symmetry breaking: Are Hairy Black Holes Primordial?
Suruj Jyoti Das, Miok Park
We investigate whether hairy black holes generated through spontaneous symmetry breaking in Einstein-Scalar-Gauss-Bonnet (ESGB) theory, involving a complex scalar field with a glob…
Profile Reconstruction from Temporally Stable Emission Components for Timing PSR J1713+0747
Shaswata Chowdhury, M. A. Krishnakumar, Sharika Dhakappa +26
The assumption of long-term pulse-profile stability underpins high-precision pulsar timing and forms the basis of pulsar timing array experiments. However, several millisecond puls…
Leptogenesis and neutrino mass with one right-handed neutrino and Higgs inflaton
Disha Bandyopadhyay, Debasish Borah, Suruj Jyoti Das +1
We propose a novel and minimal setup where the observed baryon asymmetry of the Universe and neutrino oscillation data can be satisfied with only one right-handed neutrino (RHN) an…
Hunting for heavy with IceCube neutrinos and gravitational waves
Basabendu Barman, Arindam Das, Suruj Jyoti Das +1
In the minimal gauged B-L extension of the Standard Model, we demonstrate that PeV-scale dark matter (DM) and the baryon asymmetry of the Universe (BAU) can be simultaneously expla…
Flipped Rotating Axion Non-minimally Coupled to Gravity: Baryogenesis and Dark Matter
Chao Chen, Suruj Jyoti Das, Konstantinos Dimopoulos +1
We demonstrate that the co-genesis of baryon asymmetry and dark matter can be achieved through the rotation of an axion-like particle, driven by a flip in the vacuum manifold's dir…
Cogenesis by a sliding pNGB with symmetry non-restoration
Eung Jin Chun, Suruj Jyoti Das, Minxi He +2
We demonstrate that a pseudo-Nambu-Goldstone boson (pNGB) with an initial misalignment angle can drive successful spontaneous baryogenesis and serve as a dark matter (DM) candidate…
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…
Cogenesis of baryon and dark matter with PBH and QCD axion
Debasish Borah, Nayan Das, Suruj Jyoti Das +1
With entropy injection, an early matter-dominated epoch (EMD) impels the axion decay constant towards larger values to produce correct axion dark matter (DM) abundance, there…
Dark matter from phase transition generated PBH evaporation with gravitational waves signatures
Debasish Borah, Suruj Jyoti Das, Indrajit Saha
We study the possibility of generating dark matter (DM) purely from ultra-light primordial black hole (PBH) evaporation with the latter being produced from a first order phase tran…
Scale of Dirac leptogenesis and left-right symmetry in the light of recent PTA results
Basabendu Barman, Debasish Borah, Suruj Jyoti Das +1
Motivated by the recent release of new results from five different pulsar timing array (PTA) experiments claiming to have found compelling evidence for primordial gravitational wav…
Imprint of inflationary gravitational waves and WIMP dark matter in pulsar timing array data
Debasish Borah, Suruj Jyoti Das, Rome Samanta
Motivated by the recent release of new results from five different pulsar timing array (PTA) experiments claiming to have found compelling evidence for primordial gravitational wav…
Thermalised dark radiation in the presence of PBH: and gravitational waves complementarity
Nayan Das, Suruj Jyoti Das, Debasish Borah
We study the possibility of detecting dark radiation (DR) produced by a combination of interactions with the thermal bath and ultra-light primordial black hole (PBH) evaporation in…
Baryon asymmetry from dark matter decay
Debasish Borah, Suruj Jyoti Das, Rishav Roshan
We propose a novel framework where baryon asymmetry can arise due to forbidden decay of dark matter (DM) enabled by finite temperature effects in the early universe. In order to im…
Imprint of PBH domination on gravitational waves generated by cosmic strings
Debasish Borah, Suruj Jyoti Das, Rishav Roshan +1
We study the effect of an ultra-light primordial black hole (PBH) dominated phase on the gravitational wave (GW) spectrum generated by a cosmic string (CS) network formed as a resu…
Affleck-Dine Cogenesis of Baryon and Dark Matter
Debasish Borah, Suruj Jyoti Das, Nobuchika Okada
We propose a mechanism for cogenesis of baryon and dark matter (DM) in the universe via the Affleck-Dine (AD) route. An AD field which breaks the lepton number symmetry, leads to t…
Gravitational wave signatures of PBH-generated baryon-dark matter coincidence
Basabendu Barman, Debasish Borah, Suruj Jyoti Das +1
We propose a new way of probing non-thermal origin of baryon asymmetry of universe (BAU) and dark matter (DM) from evaporating primordial black holes (PBH) via stochastic gravitati…
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…
Probing high scale seesaw and PBH generated dark matter via gravitational waves with multiple tilts
Debasish Borah, Suruj Jyoti Das, Rishav Roshan
We propose a scenario where a high scale seesaw origin of light neutrino mass and gravitational dark matter (DM) in MeV-TeV ballpark originating from primordial black hole (PBH) ev…
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…
Non-thermal Origin of Asymmetric Dark Matter from Inflaton and Primordial Black Holes
Basabendu Barman, Debasish Borah, Suruj Jyoti Das +1
We study the possibility of cogenesis of baryon and dark matter (DM) from the out-of-equilibrium CP violating decay of right handed neutrino (RHN) that are dominantly of non-therma…
Thermal keV dark matter in a gauged B-L model with cosmic inflation
Debasish Borah, Suruj Jyoti Das, Abhijit Kumar Saha
We investigate the possibility of keV scale thermal dark matter (DM) in a gauged extension of the standard model with three right-handed neutrinos (RHN) and one vector like…
Low scale leptogenesis and dark matter in the presence of primordial black holes
Suruj Jyoti Das, Devabrat Mahanta, Debasish Borah
We study the possibility of low scale leptogenesis along with dark matter (DM) in the presence of primordial black holes (PBH). For a common setup to study both leptogenesis and DM…
Gravitational origin of dark matter and Majorana neutrino mass with non-minimal quartic inflation
Debasish Borah, Suruj Jyoti Das, Abhijit Kumar Saha
We propose a minimal framework to address successful quartic inflation, dark matter (DM) production in the early universe and non-vanishing tiny Majorana neutrino mass from a commo…
Cosmic Inflation in Minimal Model: Implications for (Non) Thermal Dark Matter and Leptogenesis
Debasish Borah, Suruj Jyoti Das, Abhijit Kumar Saha
We study the possibility of realising cosmic inflation, dark matter (DM), baryon asymmetry of the universe (BAU) and light neutrino masses in non-supersymmetric minimal gauged $B-L…