31 citations · 93 across the 21 of their papers we have counts for
25 papers
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…
Mono-Z signal for dark matter searches at future lepton colliders and cosmological interpretation
Anupam Ghosh, Partha Kumar Paul, Abhik Sarkar +4
We investigate mono- signature at the future electron-positron collider within the dark matter effective field theory (DMEFT) framework, considering operators up to dimension si…
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 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…
Probing Dynamical Inverse Seesaw 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…
Cosmological Probes of Lepton Parity Freeze-in Dark Matter: & Gravitational Waves
Ernest Ma, Partha Kumar Paul, Narendra Sahu
In the canonical type-I seesaw mechanism for neutrino masses, a residual symmetry known as lepton parity: , remains preserved. Introducing a Majorana fermion with even…
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…
Revisiting the limits on dark matter annihilation cross-section and decay lifetime in light of electron and positron fluxes
Nagisa Hiroshima, Kazunori Kohri, Partha Kumar Paul +1
We revisit the upper bound on the annihilation cross-section, of a stable dark matter (DM) of mass GeV by considering five different channels: $W^+…
Lepton parity dark matter and naturally unstable domain walls
Ernest Ma, Partha Kumar Paul, Narendra Sahu
We propose a simple and predictive setup that connects neutrino masses, dark matter (DM), and gravitational waves. A minimal lepton parity DM scenario is considered where the resid…
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…
Does thermal leptogenesis in a canonical seesaw rely on initial memory?
Partha Kumar Paul, Narendra Sahu, Shashwat Sharma
It is a common lore that in thermal leptogenesis within the type-I seesaw framework and a hierarchical spectrum of heavy right-handed neutrinos (RHNs), the CP-violating, out-of-equ…
Super heavy dark matter origin of the PeV neutrino event: KM3-230213A
Kazunori Kohri, Partha Kumar Paul, Narendra Sahu
The recent observation of the ultrahigh-energy neutrino event KM3-230213A by the KM3NeT experiment offers a compelling avenue to explore physics beyond the Standard Model (SM). In…
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…
Thermal leptogenesis, dark matter, and gravitational waves from an extended canonical seesaw scenario
Partha Kumar Paul, Narendra Sahu, Prashant Shukla
In a canonical type-I seesaw scenario, the Standard Model is extended with three singlet right-handed neutrinos (RHNs) with masses to simultaneously e…
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…