47 citations · 306 across the 32 of their papers we have counts for
34 papers
Inelastic Dark Matter at LZ from Radiative Dirac Neutrino Mass Paradigm
Pankaj Borah, Satyabrata Mahapatra, Newton Nath +1
The LUX-ZEPLIN (LZ) experiment has reported a high-energy nuclear recoil candidate, LZ230616, at keV, which is difficult to reconcil…
Boosted or Inelastic? Discriminating Interpretations of the LZ 248 keV Event
Satyabrata Mahapatra, Partha Kumar Paul
The LUX-ZEPLIN experiment has reported a single nuclear recoil candidate at ~keV, disfavouring the background-only hypothesis…
Inelastic Self-interacting Dark Matter and LUX-ZEPLIN 248 keV Event in a Dirac Modular Inverse Seesaw
Pritam Das, Biswajit Karmakar, Satyabrata Mahapatra +1
We propose a novel framework that simultaneously addresses the origin of Dirac neutrino masses and the nature of self-interacting dark matter (SIDM). The model is based on an $A_{4…
Dark Phoenix: dark matter relic from its own decay
Debasish Borah, Satyabrata Mahapatra, Indrajit Saha +2
We propose a novel mechanism for generating correct relic of dark matter (DM) which otherwise gets thermally overproduced from the conventional freeze-out mechanism. The mechanism,…
Forbidden dark matter assisted by first-order phase transition and associated gravitational waves
Satyabrata Mahapatra, Partha Kumar Paul, Narendra Sahu
We propose a simple yet testable framework for light fermion dark matter (DM) with mass in the MeV--GeV range, charged under a dark gauge symmetry. Before symmetry breakin…
Light thermal dark matter models in the light of DAMIC-M 2025 constraints
Debasish Borah, Satyabrata Mahapatra, Narendra Sahu +1
We study the viability of light thermal dark matter (DM) in sub-GeV mass range in view of the stringent new DAMIC-M limits on DM-electron scattering. Considering a Dirac fermion si…
Self-interacting dark matter with observable
Debasish Borah, Satyabrata Mahapatra, Narendra Sahu +1
We propose a GeV-scale self-interacting dark matter (SIDM) candidate within a dark gauged extension of the Standard Model (SM), addressing small-scale structure issues in…
Verifiable type-III seesaw and dark matter in a gauged symmetric model
Satyabrata Mahapatra, Partha Kumar Paul, Narendra Sahu +1
We propose a new extension of the Standard Model that incorporates a gauged \( U(1)_{\rm B-L} \) symmetry and the type-III seesaw mechanism to explain neutrino mass generation and…
Effective theory of light Dirac neutrino portal dark matter with observable
Debasish Borah, Satyabrata Mahapatra, Dibyendu Nanda +2
We study the possibility of light Dirac neutrino portal dark matter (DM) in an effective field theory setup. Dirac nature of light neutrino automatically includes its right chiral…
Discrete dark matter with light Dirac neutrinos
Debasish Borah, Pritam Das, Biswajit Karmakar +1
We propose a new realisation of light Dirac neutrino mass and dark matter (DM) within the framework of a non-Abelian discrete flavour symmetry based on group. In addition to…
New realisation of light thermal dark matter with enhanced detection prospects
Amit Adhikary, Debasish Borah, Satyabrata Mahapatra +3
Light dark matter (DM) with mass around the GeV scale faces weaker bounds from direct detection experiments. If DM couples strongly to a light mediator, it is possible to have obse…
Asymmetric self-interacting dark matter with a canonical seesaw model
Debasish Borah, Satyabrata Mahapatra, Partha Kumar Paul +2
We study the possibility of generating dark matter (DM) and baryon asymmetry of the Universe (BAU) simultaneously in an asymmetric DM framework, which also alleviates the small-sca…
Light thermal dark matter via type-I seesaw portal
Debasish Borah, Pritam Das, Satyabrata Mahapatra +1
We propose a minimal scenario for light thermal dark matter (DM) in sub-GeV to GeV range by incorporating a scalar singlet DM in a type-I seesaw scenario extended by an additional…
Self Interacting Dark Matter and Dirac neutrinos via Lepton Quarticity
Satyabrata Mahapatra, Sujit Kumar Sahoo, Narendra Sahu +1
In this paper, we put forward a connection between the self-interacting dark matter and the Dirac nature of neutrinos. Our exploration involves a discrete symmet…
Phenomenology of the flavor symmetric scoto-seesaw model with dark matter and TM mixing
Joy Ganguly, Janusz Gluza, Biswajit Karmakar +1
We propose a hybrid scoto-seesaw model based on the non-Abelian discrete flavor symmetry. Light neutrino masses come from the tree-level type-I seesaw mechanism and from the…
Scotogenic origin of , W-mass anomaly and 95 GeV excess
Debasish Borah, Satyabrata Mahapatra, Partha Kumar Paul +1
We study a scotogenic extension of the minimal gauged model, including three right-handed singlet fermions and a scalar doublet all odd under an in-built symmetry t…
Singlet-doublet fermion dark matter with Dirac neutrino mass, and
Debasish Borah, Satyabrata Mahapatra, Dibyendu Nanda +2
We study the possibility of generating light Dirac neutrino mass via scotogenic mechanism where singlet-doublet fermion dark matter (DM) plays non-trivial role in generating one-lo…
Self-interacting dark matter and the GRB221009A event
Debasish Borah, Satyabrata Mahapatra, Narendra Sahu +1
In this work, we explore the intriguing possibility of connecting self-interacting dark matter (SIDM) with the recently observed exceptionally bright and long-duration Gamma Ray Bu…
Asymmetric long-lived dark matter and leptogenesis from type-III seesaw framework
Satyabrata Mahapatra, Partha Kumar Paul, Narendra Sahu +1
We propose a simple model in the type-III seesaw framework to explain the neutrino mass, asymmetric dark matter (ADM), and baryon asymmetry of the Universe. We extend the standard…
Gauged symmetry, fourth generation, neutrino mass and dark matter
Satyabrata Mahapatra, Rabindra N. Mohapatra, Narendra Sahu
We present two models where the familiar leptonic symmetry is a gauge symmetry. We show how anomaly cancellation constrains the allowed theories, with one of them req…
A new realisation of light thermal self-interacting dark matter and detection prospects
Debasish Borah, Satyabrata Mahapatra, Narendra Sahu
Light dark matter (DM) in the GeV ballpark faces weaker constraint from direct detection experiments. If such DM also has sufficient self-interactions due to a light mediator, it c…
Singlet-Doublet Fermion Origin of Dark Matter, Neutrino Mass and W-Mass Anomaly
Debasish Borah, Satyabrata Mahapatra, Narendra Sahu
Motivated by the recently reported anomaly in W boson mass by the CDF collaboration with statistical significance, we consider a singlet-doublet (SD) Majorana fermion dark mat…
Type II Dirac Seesaw with Observable in the light of W-mass Anomaly
Debasish Borah, Satyabrata Mahapatra, Dibyendu Nanda +1
We propose a type II seesaw model for light Dirac neutrinos to provide an explanation for the recently reported anomaly in W boson mass by the CDF collaboration with statistic…
Unified Origin of Dark Matter Self-Interactions and Low Scale Leptogenesis
Debasish Borah, Arnab Dasgupta, Satyabrata Mahapatra +1
We propose a novel and minimal framework where a light scalar field can give rise to dark matter (DM) self-interactions, while enhancing the CP symmetry required for successful bar…