5 citations · 10 across the 10 of their papers we have counts for
10 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…
Constraints on the inflationary vacuum and reheating era from NANOGrav
Debtosh Chowdhury, Rounak Nath, Sudipta Show
NANOGrav and various pulsar timing array experiments recently reported compelling evidence for a stochastic gravitational wave background (SGWB). Such a background may originate fr…
Addressing the Hubble tension with Sterile Neutrino Dark Matter
Debtosh Chowdhury, Md Sariful Islam
One of the promising dark matter (DM) candidates is a keV-scale sterile neutrino. In the early universe, the observed relic of the sterile neutrino DM is generated via the Dodelson…
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…
Tagging ultra-boosted jets at FCC-hh using machine learning techniques
Sanchari Bhattacharyya, Biplob Bhattacherjee, Camellia Bose +2
The Future Circular Hadron Collider (FCC-hh) will probe unprecedented energy regimes, enabling direct searches for new elementary particles at a scale of tens of TeV. FCC-hh is cur…
SIMP dark matter during reheating
Debtosh Chowdhury, Sudipta Show
Strongly interacting massive particle (SIMP) has become one of the promising dark matter (DM) candidates due to its capability of addressing the small-scale anomaly, where the fina…
Dark matter cooling during early matter-domination boosts sub-earth halos
Avik Banerjee, Debtosh Chowdhury, Arpan Hait +1
The existence of an early matter-dominated epoch prior to the Big Bang Nucleosynthesis may lead to a scenario where the thermal dark matter cools faster than plasma before the radi…
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…
Ultra-light dark matter explanation of NANOGrav observations
Debtosh Chowdhury, Arpan Hait, Subhendra Mohanty +1
The angular correlation of pulsar residuals observed by NANOGrav and other pulsar timing array (PTA) collaborations show evidence in support of the Hellings-Downs correlation expec…