7 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…
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…
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…
Next-to-Leading Order Unitarity Fits in the Extended Georgi-Machacek Model
Debtosh Chowdhury, Poulami Mondal, Subrata Samanta
The Georgi-Machacek (GM) model is a triplet scalar extension of the Standard Model (SM) that preserves custodial symmetry (CS) due to an explicit global sy…