30 citations · 115 across the 12 of their papers we have counts for
12 papers · 1 filter
Testing Dark Matter Coscattering with the High-Energy LZ Recoil
Sreemanti Chakraborti, Soumyajit Datta
We investigate whether the high-energy nuclear recoil recently reported by LZ can probe dark matter (DM) whose relic abundance is set by coscattering, or conversion-driven freeze-o…
Probing the Phenomenology of Dark Matter from Decoupled Freeze-Out
Geneviève Bélanger, Aoife Bharucha, Sreemanti Chakraborti +2
We consider a model of dark matter where the mediator corresponds to a superposition of a scalar and pseudoscalar, and the scenario where, after reheating, the number densities of…
Rekindling s-Wave Dark Matter Annihilation Below 10GeV with Breit-Wigner Effects
Geneviève Bélanger, Sreemanti Chakraborti, Cédric Delaunay +1
Velocity-independent (s-wave) annihilation of thermal Dark Matter is ruled out by CMB data for masses below 10GeV, effectively ruling out the possibility of indirectly detecting it…
Axion Bounds from Quantum Technology
Martin Bauer, Sreemanti Chakraborti, Guillaume Rostagni
A consistent treatment of the quantum field theory of an axion-like particle (ALP) interacting with Standard Model fields requires to account for renormalisation group running and…
On the Validity of Bounds on Light Axions for GeV
Martin Bauer, Sreemanti Chakraborti
Light bosonic dark matter fields that can be treated like a classical wave have non-linear field values close to massive bodies. Here we make the important observation that the qua…
GeV-scale dark matter with -wave Breit-Wigner enhanced annihilation
Genevieve Bélanger, Sreemanti Chakraborti, Yoann Génolini +1
We consider a light scalar dark matter candidate with mass in the GeV range whose -wave annihilation is enhanced through a Breit-Wigner resonance. The annihilation actually proc…
A Global Analysis of Resonance-enhanced Light Scalar Dark Matter
Tobias Binder, Sreemanti Chakraborti, Shigeki Matsumoto +1
We study a minimal model for a light scalar dark matter, requiring a light scalar mediator to address the core-cusp problem and interact with the standard model particles. We analy…
Electroweak Symmetry Breaking and WIMP-FIMP Dark Matter
Subhaditya Bhattacharya, Sreemanti Chakraborti, Dipankar Pradhan
Electroweak Symmetry Breaking (EWSB) is known to produce a massive universe that we live in. However, it may also provide an important boundary for freeze-in or freeze-out of dark…
Gamma Factory Searches for Extremely Weakly-Interacting Particles
Sreemanti Chakraborti, Jonathan L. Feng, James K. Koga +1
The Gamma Factory is a proposal to back-scatter laser photons off a beam of partially-stripped ions at the LHC, producing a beam of MeV to GeV photons with intensitie…
Implications of dark sector mixing on leptophilic scalar dark matter
Sreemanti Chakraborti, Rashidul Islam
We propose a new viable outlook to the mixing between a singlet and a doublet leptonic dark sector fields. This choice relaxes the dark matter (DM) search constraints on the quinte…
Multilepton signatures for scalar dark matter searches in coannihilation scenario
Sreemanti Chakraborti, Rashidul Islam
We revisit the scalar singlet dark matter (DM) scenario with a pair of dark lepton partners which form a vectorlike Dirac fermionic doublet. The extra doublet couples with the Stan…
Probing Multicomponent Extension of Inert Doublet Model with a Vector Dark Matter
Sreemanti Chakraborti, Amit Dutta Banik, Rashidul Islam
Although theoretically well-motivated as a minimal consistent Dark Matter (DM) model, the Inert Doublet Model (IDM) fell short in explaining the existence of DM in the intermediate…