31 citations · 93 across the 31 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…
An early dominance: dark matter, gravitational waves & collider probes
Basabendu Barman, Nayan Das, Partha Kumar Paul +1
In the minimal anomaly-free gauged BL extension of the Standard Model (SM), we consider a scenario in which the energy density of the new Abelian gauge boson dominates the Unive…
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…
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,…
Probing the dynamical inverse seesaw mechanism with low-frequency gravitational waves
Debasish Borah, Sounak Dutta, Partha Kumar Paul +2
We study the possibility of probing the dynamical inverse seesaw mechanism for the origin of light neutrino masses via the detection of stochastic gravitational waves (GW) in the l…
Singlet-doublet dark matter induced radiative neutrino mass and TeV scale leptogenesis
Partha Kumar Paul, Narendra Sahu, Shashwat Sharma
The singlet-doublet dark matter (SDDM) model is a well-motivated WIMP framework that accommodates viable DM over a broad range of parameter space. In this work, we explore the poss…
Cogenesis of visible and dark matter in type-I Dirac seesaw
Debasish Borah, Partha Kumar Paul, Narendra Sahu
We propose a novel cogenesis framework based on the type-I Dirac seesaw mechanism. The minimal type-I Dirac seesaw with three heavy vector-like fermions , one singlet scalar $…
Can Dirac neutrinos destabilize domain wall network?
Debasish Borah, Partha Kumar Paul, Narendra Sahu
In particle physics model building, a discrete symmetry is often spontaneously broken for phenomenological reasons. When this breaking occurs dynamically in the ear…
Baryon-dark matter coincidence in Randall-Sundrum Model
Basabendu Barman, Ashmita Das, Partha Kumar Paul +2
Within the framework of the extra-dimensional Randall-Sundrum set-up, we investigate the freeze-in production of Standard Model (SM) gauge-singlet scalar, fermionic, and massive ve…
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…
Naturally small Dirac neutrino mass and dark matter
Ernest Ma, Partha Kumar Paul, Narendra Sahu
In the conventional gauged extension of the standard model, the charge of the singlet scalar , responsible for the breaking of symmetry, is taken to b…
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…