209 citations · 450 across the 23 of their papers we have counts for
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Signature of GW from the Hidden Sector in light of the Recent LZ Event
Sujit Kumar Sahoo, Narendra Sahu, Vicky Singh Thounaojam
The LZ collaboration has recently reported a single nuclear-recoil event at keV, observed in a 2.84 tonne-year exposure with a local sign…
Resurrecting Electroweak Dark Matter via Type-II Seesaw in light of recent LZ Event
Partha Kumar Paul, Sujit Kumar Sahoo, Narendra Sahu +1
The recent observation of the high-energy nuclear recoil event LZ230616 with a recoil energy around 248 keV provides an interesting possibility to probe inelastic doublet dark matt…
Inelastic Singlet-Doublet Fermion Dark Matter in light of the 248 keV LZ event
Debasish Borah, Sujit Kumar Sahoo, Narendra Sahu +1
Recently, the LUX-ZEPLIN (LZ) collaboration reported the observation of a single dark matter (DM)-nucleus scattering event at a nuclear recoil energy of $248\pm23_{\rm stat}\pm23_{…
Singlet-Doublet fermion origin of dark matter, neutrino mass and inverse first-order electroweak phase transition
Debasish Borah, Indrajit Saha, Sujit Kumar Sahoo +2
We study the possibility of an inverse first-order electroweak phase transition (IFOEWPT) and observable gravitational waves (GW) in a radiative neutrino mass model of scotogenic t…
Anatomy of RHN DM relic in the vanilla scotogenic neutrino mass model
Sujit Kumar Sahoo, Narendra Sahu, Vicky Singh Thounaojam
The scotogeneic neutrino mass models are very popular choices to generate light neutrino masses via radiative mechanism. In these models, the particles running in the loop are dist…
Gravitational Wave Probe of Singlet-Doublet Dark Matter Induced Radiative Neutrino Mass
Ujjal Kumar Dey, Santu Kumar Manna, Partha Kumar Paul +2
We investigate an one loop radiative neutrino mass model, where the loop particles, notably a singlet fermion (), a doublet fermion () and three generations of singlet scalar…
Impact of conversion-driven processes on singlet-doublet Majorana dark matter relic
Partha Kumar Paul, Sujit Kumar Sahoo, Narendra Sahu
The singlet-doublet dark matter model offers a rich framework for exploring the nature of dark matter (DM) through its unique fermion structure. In this model, the important parame…
Viability of post-inflationary freeze-in with precision cosmology
Anirban Biswas, Sougata Ganguly, Dibyendu Nanda +1
Prediction of inflationary observables from the temperature fluctuation of Cosmic Microwave Background (CMB) can play a pivotal role in predicting the reheating dynamics in the ear…
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…
Anatomy of singlet-doublet dark matter relic: annihilation, co-annihilation, co-scattering, and freeze-in
Partha Kumar Paul, Sujit Kumar Sahoo, Narendra Sahu
The singlet-doublet vector-like fermion dark matter model has been extensively studied in the literature over the past decade. An important parameter in this model is the singlet-d…
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…
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…