93 citations · 631 across the 23 of their papers we have counts for
23 papers
Thermalization in the presence of a time-dependent dissipation and its impact on dark matter production
Debtosh Chowdhury, Arpan Hait
In standard cosmological scenarios, a heavy meta-stable field dominates the energy density of the universe after inflation. The dissipation of this field continuously sources high-…
Fingerprints of freeze-in dark matter in an early matter-dominated era
Avik Banerjee, Debtosh Chowdhury
We study the impact of an alternate cosmological history with an early matter-dominated epoch on the freeze-in production of dark matter. Such early matter domination is triggered…
Forays into the dark side of the swamp
Iason Baldes, Debtosh Chowdhury, Michel H. G. Tytgat
Motivated by the swampland conjectures, we study cosmological signatures of a quintessence potential which induces time variation in the low energy effective field theory. After de…
BPS solutions for generalised Wess-Zumino models and their applications
Steven Abel, Quentin Bonnefoy, Debtosh Chowdhury
We present BPS solutions to a general class of Wess-Zumino models which extend previous results in the literature. We discuss their relation to amplitudes on threshold, and their a…
Dark matter seeping through dynamic gauge kinetic mixing
Avik Banerjee, Gautam Bhattacharyya, Debtosh Chowdhury +1
We show for the first time that the loop-driven kinetic mixing between visible and dark Abelian gauge bosons can facilitate dark matter production in the early Universe by creating…
Moduli Portal Dark Matter
Debtosh Chowdhury, Emilian Dudas, Maíra Dutra +1
We show that moduli fields as mediators between the Standard Model and the dark sector can naturally lead to the observed relic abundance. Indeed, even if moduli are very massive,…
Update of Global Two-Higgs-Doublet Model Fits
Debtosh Chowdhury, Otto Eberhardt
We perform global fits of Two-Higgs-Doublet models with a softly broken symmetry to recent results from the LHC detectors CMS and ATLAS, that is signal strengths and…
Indirect Searches of the Degenerate MSSM
Debtosh Chowdhury, Ketan M. Patel, Xerxes Tata +1
A degenerate sfermionic particle spectrum can escape constraints from flavor physics, and at the same time evade the limits from the direct searches if the degeneracy extends to th…
Next-to-leading order unitarity fits in Two-Higgs-Doublet models with soft breaking
Vincenzo Cacchio, Debtosh Chowdhury, Otto Eberhardt +1
We fit the next-to-leading order unitarity conditions to the Two-Higgs-Doublet model with a softly broken symmetry. In doing so, we alleviate the existing uncertaint…
Current status of MSSM Higgs sector with LHC 13 TeV data
Rahool Kumar Barman, Biplob Bhattacherjee, Arghya Choudhury +3
ATLAS and CMS collaborations have reported the results on the Higgs search analyzing fb data from Run-II of LHC at 13 TeV. In this work, we study the Higgs sector…
Constraints on dark matter annihilation to fermions and a photon
Debtosh Chowdhury, Abhishek M. Iyer, Ranjan Laha
We consider Majorana dark matter annihilation to fermion - anti-fermion pair and a photon in the effective field theory paradigm, by introducing dimension 6 and dimension 8 operato…
Muon g-2 in Anomaly Mediated SUSY Breaking
Debtosh Chowdhury, Norimi Yokozaki
Motivated by two experimental facts, the muon g-2 anomaly and the observed Higgs boson mass around 125 GeV, we propose a simple model of anomaly mediation, which can be seen as a g…
Same sign di-lepton candles of the composite gluons
Aleksandr Azatov, Debtosh Chowdhury, Diptimoy Ghosh +1
Composite Higgs models, where the Higgs boson is identified with the pseudo-Nambu-Goldstone-Boson (pNGB) of a strong sector, typically have light composite fermions (top partners)…
Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft breaking
Debtosh Chowdhury, Otto Eberhardt
We determine the next-to-leading order renormalization group equations for the Two-Higgs-Doublet model with a softly broken symmetry and CP conservation in the scalar potenti…
Explaining the Lepton Non-universality at the LHCb and CMS from a Unified Framework
Sanjoy Biswas, Debtosh Chowdhury, Sangeun Han +1
The recent results from the LHCb in the context of decay and the CMS analysis in the context of right handed -boson () search show a and…
Charge and Color Breaking Constraints in MSSM after the Higgs Discovery at LHC
Debtosh Chowdhury, Rohini M. Godbole, Kirtimaan A. Mohan +1
We revisit the constraints on the parameter space of the Minimal Supersymmetric Standard Model (MSSM), from charge and color breaking minima in the light of information on the Higg…
Revisiting lepton flavor violation in supersymmetric type II seesaw
Debtosh Chowdhury, Ketan M. Patel
In view of the recent measurement of reactor mixing angle and updated limit on by the MEG experiment, we re-examine the charged lepton flavor violations in…
Proposal for generalised Supersymmetry Les Houches Accord for see-saw models and PDG numbering scheme
L. Basso, A. Belyaev, D. Chowdhury +6
The SUSY Les Houches Accord (SLHA) 2 extended the first SLHA to include various generalisations of the Minimal Supersymmetric Standard Model (MSSM) as well as its simplest next-to-…
Les Houches 2011: Physics at TeV Colliders New Physics Working Group Report
G. Brooijmans, B. Gripaios, F. Moortgat +141
We present the activities of the "New Physics" working group for the "Physics at TeV Colliders" workshop (Les Houches, France, 30 May-17 June, 2011). Our report includes new agreem…
SuSeFLAV: A program for calculating supersymmetric spectra and lepton flavor violation
Debtosh Chowdhury, Raghuveer Garani, Sudhir K. Vempati
We introduce the program SuSeFLAV for computing supersymmetric mass spectra with flavor violation in various supersymmetric breaking scenarios with/without seesaw mechanism. A shor…
SUSEFLAV: program for supersymmetric mass spectra with seesaw mechanism and rare lepton flavor violating decays
Debtosh Chowdhury, Raghuveer Garani, Sudhir K. Vempati
Accurate supersymmetric spectra are required to confront data from direct and indirect searches of supersymmetry. \SUSEFLAV is a numerical tool which is capable of computing supers…
Flavored Co-annihilations
Debtosh Choudhury, Raghuveer Garani, Sudhir K. Vempati
Neutralino dark matter in supersymmetric models is revisited in the presence of flavor violation in the soft supersymmetry breaking sector. We focus on flavor violation in the slep…
Results from PAMELA, ATIC and FERMI : Pulsars or Dark Matter ?
Debtosh Chowdhury, Chanda J. Jog, Sudhir K Vempati
It is well known that the dark matter dominates the dynamics of galaxies and clusters of galaxies. Its constituents remain a mystery despite an assiduous search for them over the p…