27 citations · 71 across the 13 of their papers we have counts for
13 papers
Fate of Metastable Vacua in the Type-II Two-Higgs Doublet Model
Debtosh Chowdhury, Kirtimaan A. Mohan, Poulami Mondal +1
The scalar potential of the Two-Higgs-Doublet Model (2HDM) can admit multiple non-degenerate vacua due to the presence of the two Higgs doublets unlike the Standard Model (SM). For…
Multipolar Dark Matter Freeze-out in an Early Matter-Dominated Universe
Debajit Bose, Prolay Chanda, Suvam Maharana +1
The relic abundance of thermal dark matter depends not only on its particle interactions but also on the expansion history of the early Universe. We study the freeze-out of fermion…
One-loop renormalization and parameter in the Georgi-Machacek model
Debtosh Chowdhury, Anirban Kundu, Poulami Mondal +2
We study the one-loop renormalization of the Georgi-Machacek model. At one loop, the renormalization of the model is phenomenologically important when triggered by operators that a…
Light Scalars in the Extended Georgi-Machacek Model
Poulami Mondal, Subrata Samanta
We perform global fits of the CP-conserving Georgi-Machacek (GM) and extended Georgi-Machacek (eGM) models, incorporating a light CP-even beyond the Standard Model (BSM) scalar wit…
Resonances all over the place?
Anirban Kundu, Poulami Mondal, Gilbert Moultaka
We provide a possible interpretation of excesses reported by ATLAS and CMS at around 95GeV, 650GeV and possibly 320GeV, in terms of CP-even scalars. In particular, the combined {\s…
Indications for new scalar resonances at the LHC and a possible interpretation
Anirban Kundu, Poulami Mondal, Gilbert Moultaka
Over the last few years, the CMS and ATLAS collaborations at the Large Hadron Collider (LHC) have reported excesses that could hint at several new scalar resonances. Although none…
Next-to-Leading Order Unitarity Fits in the Extended Georgi-Machacek Model
Debtosh Chowdhury, Poulami Mondal, Subrata Samanta
We compute one-loop corrections to all bosonic scattering amplitudes in the generalized two-triplet scalar extension of the Standard Model and place next-to-leading order u…
Troubles mounting for multipolar dark matter
Debajit Bose, Debtosh Chowdhury, Poulami Mondal +1
In this paper, we revisit the experimental constraints on the multipolar dark matter that has derivative coupling to the visible sector mediated by the Standard Model photon. The m…
Searches for scalars at LHC and interpretation of the findings
Anirban Kundu, Alain Le Yaouanc, Poulami Mondal +1
In view of the future Higgs factories, this work presents the status of scalar searches at the LHC with an emphasis on the H(650) resonance which has been observed in WW, ZZ and h(…
Enhancement of the boson mass in the Georgi-Machacek model
Poulami Mondal
The recent CDF-II measurement of the mass of the boson shows a significant tension with the Standard Model (SM) expectation, even when averaged with earlier measurements. The t…
Custodial symmetry, Georgi-Machacek model, and other scalar extensions
Anirban Kundu, Poulami Mondal, Palash B. Pal
In an SU(2) gauge theory, if the gauge bosons turn out to be degenerate after spontaneous symmetry breaking, obviously these mass terms are invariant under a global SU(2) symmetry…
Hierarchy problem and dimension-six effective operators
Ambalika Biswas, Anirban Kundu, Poulami Mondal
Without any mechanism to protect its mass, the self-energy of the Higgs boson diverges quadratically, leading to the hierarchy or fine-tuning problem. One bottom-up solution is to…
A 96 GeV scalar tagged to dark matter models
Anirban Kundu, Suvam Maharana, Poulami Mondal
Recently, the CMS Collaboration observed the hint of a resonance decaying to two photons at about 96 GeV with a local significance of . While it is too early to say whether t…