73 citations · 725 across the 31 of their papers we have counts for
35 papers
Probing an up-phobic Higgs at colliders: the role of -associated production in the democratic 3HDM
Dipankar Das, Teesha Khandelwal, Ipsita Saha
We show that there exists a theoretically well-motivated Higgs sector in which the conventional heavy-Higgs production mechanisms are suppressed. In this limit, the -associated…
Soft Symmetry Breaking as a Nonstandard Source of Mass: Phenomenological Insights from the Two-Higgs-Doublet Model
Dipankar Das, Miguel Levy, Shreya Pandey +2
The soft-breaking parameter, , frequently appearing in the 2HDM scalar potential is much more remarkable than being just a nonstandard parameter that helps make the BSM s…
Consistent Excesses in the LHC Electroweak SUSY Searches: GUT-based Singlino/Higgsino Interpretation in the NMSSM
Emanuele Bagnaschi, Manimala Chakraborti, Sven Heinemeyer +1
The search for supersymmetric models remains one of the main items on the BSM search program at the LHC, with EW SUSY partners still allowed with masses as low as a few hundred GeV…
Consistent Excesses in the Search for : Wino/bino vs. Higgsino Dark Matter
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
The quest for supersymmetric (SUSY) particles is among the main search channels currently pursued at the LHC. Particularly, electroweak (EW) particles with masses as low as a few h…
Sign of the coupling and implication for new physics
Dipankar Das, Anirban Kundu, Miguel Levy +3
The magnitudes of the couplings of the scalar resonance at 125 GeV with the SM particles are found to be consistent with those of the SM Higgs boson. However, the signs are not exp…
New physics interpretations for nonstandard values of
Rafael Boto, Dipankar Das, Jorge C. Romao +2
Current measurement of the signal strength invite us to speculate about possible new physics interactions that exclusively affect without altering the other sign…
and Stau coannihilation : Dark Matter and Collider Analysis
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
Slepton coannihilation is one of the most promising scenarios that can bring the predicted Dark Matter (DM) abundance in the the Minimal Supersymmetric Standard Model (MSSM) into a…
New physics implications of VBF searches exemplified through the Georgi-Machacek model
Manimala Chakraborti, Dipankar Das, Nivedita Ghosh +2
LHC searches for nonstandard scalars in vector boson fusion (VBF) production processes can be particularly efficient in probing scalars belonging to triplet or higher multiplet rep…
Democratic three Higgs-doublet models: the custodial limit and wrong-sign Yukawa
Dipankar Das, Miguel Levy, Palash B. Pal +3
We study two novel aspects of democratic 3HDMs -- the custodial limit and the possibility of wrong-sign Yukawa couplings. In the custodial limit, the democratic 3HDMs can easily ne…
Interdependence of the new "MUON G-2" Result and the -Boson Mass
E. Bagnaschi, M. Chakraborti, S. Heinemeyer +2
The electroweak (EW) sector of the Minimal Supersymmetric extension of the Standard Model (MSSM), assuming the lightest neutralino as Dark Matter (DM) candidate, can account for a…
SUSY Dark Matter Direct Detection Prospects based on
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
An electroweak (EW) sector of the Minimal Supersymmetric Standard Model (MSSM) with masses of a few hundred GeV can account for variety of experimental data, assuming the lightest…
and SUSY Dark Matter: Direct Detection and Collider Search Complementarity
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha +1
The electroweak (EW) sector of the Minimal Supersymmetric Standard Model (MSSM) can account for variety of experimental data. The EW particles with masses of a few hundred GeV evad…
SUSY in the light of the new "MUON G-2" Result
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
The recently published result from the Fermilab "MUON G-2" experiment has confirmed the persistent 3-4 discrepancy between the experimental result from BNL for the anomalous ma…
Improved Measurements and Supersymmetry : Implications for colliders
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
The persistent 3-4 discrepancy between the experimental result from BNL for the anomalous magnetic moment of the muon and its Standard Model (SM) prediction, was confirmed recen…
The new "MUON G-2" Result and Supersymmetry
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
The electroweak (EW) sector of the Minimal Supersymmetric Standard Model (MSSM), with the lightest neutralino as Dark Matter (DM) candidate, can account for a variety of experiment…
Prospects of light charged scalars in a three Higgs doublet model with symmetry
Manimala Chakraborti, Dipankar Das, Miguel Levy +2
The stringent constraints from the direct searches for exotic scalars at the LHC as well as indirect bounds from flavor physics measurements have imposed severe restrictions on the…
Improved Measurements and Wino/Higgsino Dark Matter
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
The electroweak (EW) sector of the Minimal Supersymmetric Standard Model (MSSM) can account for a variety of experimental data. In particular, it can explain the persistent 3-4 sig…
Leptophilic fermion WIMP ~ Role of future lepton colliders
Shun-ichi Horigome, Taisuke Katayose, Shigeki Matsumoto +1
The leptophilic weakly interacting massive particle (WIMP) is realized in a minimal renormalizable model scenario where scalar mediators with lepton number establish the WIMP inter…
Muon Anomalous Magnetic Moment in Two Higgs Doublet Models with Vector-Like Leptons
Mariana Frank, Ipsita Saha
We show that inclusion of a single generation of vector-like leptons in the Two-Higgs Doublet Models significantly enlarges the allowed parameter space consistent with the muon ano…
Improved Measurements and Supersymmetry
Manimala Chakraborti, Sven Heinemeyer, Ipsita Saha
The electroweak (EW) sector of the Minimal Supersymmetric Standard Model (MSSM) can account for a variety of experimental data. The lighest supersymmetric particle (LSP), which we…
Charged Higgs searches in the Georgi-Machacek model at the LHC
Nivedita Ghosh, Swagata Ghosh, Ipsita Saha
The Georgi-Machacek Model allows for a large triplet vacuum expectation value (vev) with a custodial symmetric scalar potential. This manifestly leads to large charged Higgs coupli…
Role of Future Lepton Colliders for Fermionic Z-portal Dark Matter
Dilip Kumar Ghosh, Taisuke Katayose, Shigeki Matsumoto +3
The fermionic Z-portal dark matter model suffers from severe constraints from direct detection experiments. However, a narrow parameter space around the Z-funnel region is beyond t…
Alignment limit in three Higgs-doublet models
Dipankar Das, Ipsita Saha
The LHC Higgs data is showing a gradual inclination towards the SM result and realization of an SM-like limit becomes essential for BSM scenarios to survive. Considering the accura…
Cornering variants of Georgi-Machacek model using Higgs precision data
Dipankar Das, Ipsita Saha
We show that in the absence of trilinear terms in the scalar potential of Georgi-Machacek model, heavy charged scalars do not necessarily decouple from the decay amplitu…