41 citations · 300 across the 36 of their papers we have counts for
24 papers · 1 filter
Neutrino fog in the light dark sector: the role of isospin violation
Víctor Martín Lozano, Shankar Pramanik, Soumya Sadhukhan +1
Dark matter (DM) direct detection is now standing at an interesting juncture, where the Standard Model (SM) neutrino background and the upper bound on the DM signal cross section a…
Dark matter as the source of neutrino mass: theory overview and experimental prospects
Ivania M. Ávila, Anirban Karan, Sanjoy Mandal +2
We review theoretical frameworks in which small neutrino masses arise radiatively through interactions with a dark sector that also accounts for cosmological dark matter (DM). A pr…
Viability of Boosted Light Dark Matter in a Two-Component Scenario
Arindam Basu, Amit Chakraborty, Nilanjana Kumar +1
We study the boosted dark matter (BDM) scenario in a two-component model. We consider a neutrinophilic two-Higgs doublet model (2HDM), which consists of one extra Higgs doublet…
Phenomenological profile of scotogenic fermionic dark matter
Anirban Karan, Soumya Sadhukhan, José W. F. Valle
We consider the possibility that neutrino masses arise from the exchange of dark matter states. We examine in detail the phenomenology of fermionic dark matter in the singlet-tripl…
Dynamical scoto-seesaw mechanism with gauged
Julio Leite, Soumya Sadhukhan, José W. F. Valle
We propose a dynamical scoto-seesaw mechanism using a gauged symmetry. Dark matter is reconciled with neutrino mass generation, in such a way that the atmospheric scale arise…
Light Dark Matter Detection and Neutrino Floor: Role of Anomalous
Kuldeep Deka, Soumya Sadhukhan, Manvinder Pal Singh
In this work, we explore the impact of dark matter (DM) relic density and direct detection constraints on a GeV scale DM in the context of recent anomalous muon magnetic moment $(g…
Leptogenesis in an anomaly-free extension with higher-dimensional operators
Kuldeep Deka, Tanumoy Mandal, Ananya Mukherjee +1
We explore an anomaly-free gauge extended beyond the Standard model (BSM) framework, to account for the baryon asymmetry of the Universe, along with arranging for…
Charged Higgs effects in IceCube: PeV events and NSIs
Ujjal Kumar Dey, Newton Nath, Soumya Sadhukhan
Extensions of the Standard Model with charged Higgs, having a non-negligible coupling with neutrinos, can have interesting implications vis-à-vis neutrino experiments. Such models…
Emergent 2HDM in LSS Little-Higgs: Musings from Flavor and Electroweak Physics
Nilanjana Kumar, Soumya Sadhukhan
The low energy effective theory ( TeV) of the little-Higgs model with , as proposed by Low, Skiba and Smith (LSS), exhibits a two-Higgs doublet model (2HDM) stru…
Neutrino Floor in Leptophilic Models: Modification in
Soumya Sadhukhan, Manvinder Pal Singh
In this work, we investigate the beyond standard model (BSM) impact of leptophilic U(1) models, namely , and on coherent elastic…
Neutrino and phenomenology in an anomaly-free extension: role of higher-dimensional operators
Debajyoti Choudhury, Kuldeep Deka, Tanumoy Mandal +1
We consider an anomaly-free extension of the Standard Model with three right-handed neutrinos (RHNs) and two complex scalars, wherein the charge assignments preclud…
Discussing 125 GeV and 95 GeV excess in Light Radion Model
Divya Sachdeva, Soumya Sadhukhan
Even if the LHC observations are consistent with the Standard model (SM), current LHC results are not precise enough to rule out the presence of new physics. Taking a contrarian vi…
Probing the inert doublet model using jet substructure with a multivariate analysis
Akanksha Bhardwaj, Partha Konar, Tanumoy Mandal +1
We explore the challenging but phenomenologically interesting hierarchical mass spectrum of the Inert Doublet Model where relatively light dark matter along with much heavier scala…
Cutoff of IceCube Neutrino Spectrum due to t-channel Resonant Absorption by CB
Subhendra Mohanty, Ashish Narang, Soumya Sadhukhan
The non-observation of neutrinos by the IceCube at the Glashow resonance energy of 6.3 PeV has been a long standing unresolved issue. In this paper we propose a t-channel neutrino…
Non-Standard Neutrino Interactions in a Modified 2HDM
Ujjal Kumar Dey, Newton Nath, Soumya Sadhukhan
In the traditional neutrinophilic two-Higgs doublet model (2HDM), there is no non-standard neutrino interaction (NSI) as the interactions between the Standard Model fermions wit…
Explanation of IceCube spectrum with neutrino splitting in a 2HDM model
Subhendra Mohanty, Soumya Sadhukhan
A single power law flux spectrum of high energy neutrinos does not adequately explain the entire 60 TeV to 10 PeV event spectrum observed at IceCube, specially the excess of PeV ev…
Lepton Portal Limit of Inert Higgs Doublet Dark Matter with Radiative Neutrino Mass
Debasish Borah, Soumya Sadhukhan, Shibananda Sahoo
We study an extension of the Inert Higgs Doublet Model (IHDM) by three copies of right handed neutrinos and heavy charged leptons such that both the inert Higgs doublet and the hea…
Constraining wrong-sign couplings with
Tanmoy Modak, Jorge C. Romão, Soumya Sadhukhan +2
The rare decay has a very small rate in the Standard Model, due to a strong cancellation between the direct and indirect diagrams. Models with a changed co…
750 GeV Diphoton excess from Gauged Symmetry
Tanmoy Modak, Soumya Sadhukhan, Rahul Srivastava
We show that the recently observed 750 GeV diphoton excess at LHC can be due to the decay of a singlet scalar particle having 3 units of charge under gauged symme…
Can Dark Matter be an artifact of extended theories of gravity?
Sayantan Choudhury, Manibrata Sen, Soumya Sadhukhan
In this article, we propose different background models of extended theories of gravity, which are minimally coupled to the SM fields, to explain the possibility of genesis of dark…
Status and Prospects of the Two-Higgs-Doublet SU(6)/Sp(6) little-Higgs Model and the Alignment Limit
Shrihari Gopalakrishna, Tuhin Subhra Mukherjee, Soumya Sadhukhan
We study in detail the little-Higgs model proposed by Low, Skiba and Smith with an SU(6)/Sp(6) group structure. The effective theory at the TeV scale is a two-Higgs doublet model (…
Extra Neutral Scalars with Vector-like Fermions at the LHC
Shrihari Gopalakrishna, Tuhin Subhra Mukherjee, Soumya Sadhukhan
Many theories beyond the standard model (BSM) contain new CP-odd and CP-even neutral scalars , and new vector-like fermions (). The couplings of the CP-odd scal…
Warped Extra Dimensional Benchmarks for Snowmass 2013
Kaustubh Agashe, Oleg Antipin, Mihailo Backović +17
The framework of a warped extra dimension with the Standard Model (SM) fields propagating in it is a very well-motivated extension of the SM since it can address both the Planck-we…
Collider constraints on Gauss-Bonnet coupling in warped geometry model
Sayantan Choudhury, Soumya Sadhukhan, Soumitra SenGupta
In this paper the requirement of a warp solution in an Einstein-Gauss-Bonnet 5D warped geometry is shown to fix the signature of Gauss-Bonnet coupling (). Further, imposing…