358 citations · 874 across the 23 of their papers we have counts for
23 papers
Exploring two component doublet dark matter
Mariana Frank, Purusottam Ghosh, Chayan Majumdar +1
We propose a two-component dark matter (DM) scenario by extending the Standard Model with two additional doublets, one scalar, and another fermion. To ensure the stabilit…
Two-component dark matter : How to get the hint at collider?
Jayita Lahiri, Subhaditya Bhattacharya, Purusottam Ghosh +1
We investigate ways of identifying two kinds of dark matter (DM) component particles at high-energy colliders. The strategy is to notice and distinguish double-peaks(humps) in the…
FIMP Dark Matter from Flavon Portals
K. S. Babu, Shreyashi Chakdar, Nandini Das +2
We investigate the phenomenology of a non-thermal dark matter (DM) candidate in the context of flavor models that explain the hierarchy in the masses and mixings of quarks and lept…
Interplay among gravitational waves, dark matter and collider signals in the singlet scalar extended type-II seesaw model
Purusottam Ghosh, Tathagata Ghosh, Subhojit Roy
We study the prospect of simultaneous explanation of tiny neutrino masses, dark matter (DM), and the observed baryon asymmetry of the Universe in a -symmetric complex singlet…
Mono-X signal and two component dark matter: new distinction criteria
Subhaditya Bhattacharya, Purusottam Ghosh, Jayita Lahiri +1
The identification and isolation of two WIMP dark matter (DM) components at colliders is of wide interest on the one hand but extremely challenging on the other, especially when th…
Confronting dark fermion with a doubly charged Higgs in the left-right symmetric model
Shyamashish Dey, Purusottam Ghosh, Santosh Kumar Rai
We consider a fermionic dark matter (DM) in the left-right symmetric framework by introducing a pair of vector-like (VL) doublets in the particle spectrum. The stability of the DM…
Distinguishing two dark matter component particles at colliders
Subhaditya Bhattacharya, Purusottam Ghosh, Jayita Lahiri +1
In this work we demonstrate that a distorted double hump like missing energy ($\slashed{E}$) or missing transverse momentum ($\slashed{E}_T$) or missing mass ($\slashed{M}$) distri…
Self-interacting freeze-in dark matter in a singlet doublet scenario
Purusottam Ghosh, Partha Konar, Abhijit Kumar Saha +1
We examine the non-thermal production of dark matter in a scalar extended singlet doublet fermion model where the lightest admixture of the fermions constitutes a suitable dark mat…
Shedding Flavor on Dark via Freeze-in: Gauged Extensions
Basabendu Barman, Purusottam Ghosh, Anish Ghoshal +1
We consider a singlet fermionic dark matter (DM) in a gauged extension of the Standard Model (SM), with , and derive bounds on the allowed param…
TeV Scale Modified Type-II Seesaw and Dark Matter in a Gauged Symmetric Model
Purusottam Ghosh, Satyabrata Mahapatra, Nimmala Narendra +1
In an endeavor to explain the light neutrino masses and dark matter (DM) simultaneously, we study a gauged extension of the standard model (SM). The neutrino masse…
Majorana Dark Matter and Neutrino mass in a singlet-doublet extension of the Standard Model
Manoranjan Dutta, Subhaditya Bhattacharya, Purusottam Ghosh +1
A minimal extension of the Standard Model (SM) by a vector-like fermion doublet and three right handed (RH) singlet neutrinos is proposed in order to explain dark matter and tiny n…
Scalar Multiplet Dark Matter in a Fast Expanding Universe: resurrection of the desert region
Basabendu Barman, Purusottam Ghosh, Farinaldo S. Queiroz +1
We examine the impact of a faster expanding Universe on the phenomenology of scalar dark matter (DM) associated with multiplets. Earlier works with radiation dominated Un…
Singlet-Doublet Majorana Dark Matter and Neutrino Mass in a minimal Type-I Seesaw Scenario
Manoranjan Dutta, Subhaditya Bhattacharya, Purusottam Ghosh +1
In a bid to simultaneous explanation of dark matter (DM) and tiny but non-zero masses of left-handed neutrinos, we propose a minimal extension of the Standard Model (SM) by a vecto…
Flavoured gauge extension of singlet-doublet fermionic dark matter: neutrino mass, high scale validity and collider signatures
Basabendu Barman, Debasish Borah, Purusottam Ghosh +1
We propose an Abelian gauged version of the singlet-doublet fermionic dark matter (DM) model where DM, combination of a vector like fermion doublet and a fermion singlet, is natura…
Two component dark matter with inert Higgs doublet: neutrino mass, high scale validity and collider searches
Subhaditya Bhattacharya, Purusottam Ghosh, Abhijit Kumar Saha +1
The idea of this work is to investigate the constraints on the dark matter (DM) allowed parameter space from high scale validity (absolute stability of Higgs vacuum and perturbativ…
SIMPler realisation of Scalar Dark Matter
Subhaditya Bhattacharya, Purusottam Ghosh, Shivam Verma
With growing agony of not finding a dark matter (DM) particle in direct search experiments so far (for example in XENON1T), frameworks where the freeze-out of DM is driven by numbe…
Fermion Dark Matter with Scalar Triplet at Direct and Collider Searches
Basabendu Barman, Subhaditya Bhattacharya, Purusottam Ghosh +2
Fermion dark matter (DM) as an admixture of additional singlet and doublet vector like fermions provides an attractive and allowed framework by relic density and direct search cons…
A Mini-review on Vector-like Leptonic Dark Matter, Neutrino Mass and Collider Signatures
Subhaditya Bhattacharya, Purusottam Ghosh, Nirakar Sahoo +1
We review a class of models in which the Standard Model (SM) is augmented by vector-like leptons: one doublet and a singlet, which are odd under an unbroken discrete symmetry…
Multipartite Dark Matter with Scalars, Fermions and signatures at LHC
Subhaditya Bhattacharya, Purusottam Ghosh, Narendra Sahu
Basic idea of this analysis is to achieve a two-component dark matter (DM) framework composed of a scalar and a fermion, with non-negligible DM-DM interaction contributing to therm…
Study of Electroweak Vacuum Stability from Extended Higgs Portal of Dark Matter and Neutrinos
Purusottam Ghosh, Abhijit Kumar Saha, Arunansu Sil
We investigate the electroweak vacuum stability in an extended version of the Standard Model which incorporates two additional singlet scalar fields and three right handed neutrino…
Mitigating Direct Detection Bounds in Non-minimal Higgs Portal Scalar Dark Matter Models
Subhaditya Bhattacharya, Purusottam Ghosh, Tarak Nath Maity +1
Minimal scalar Higgs portal dark matter model is increasingly in tension with recent results form direct detection experiments like LUX and XENON. In this paper we make a systemati…
Multipartite Interacting Scalar Dark Matter in the light of updated LUX data
Subhaditya Bhattacharya, Purusottam Ghosh, Poulose Poulose
We explore constraints on multipartite dark matter (DM) framework composed of singlet scalar DM interacting with the Standard Model (SM) through Higgs portal coupling. We compute r…
Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR
CBM Collaboration, T. Ablyazimov, A. Abuhoza +585
Substantial experimental and theoretical efforts worldwide are devoted to explore the phase diagram of strongly interacting matter. At LHC and top RHIC energies, QCD matter is stud…