61 citations · 282 across the 18 of their papers we have counts for
18 papers
Resonant leptogenesis in (2,2) inverse see-saw realisation
Indrani Chakraborty, Himadri Roy, Tripurari Srivastava
In this present work, we uphold the standard model (SM) augmented with two right-handed (RH) neutrinos along with two singlet neutral fermions to generate active neutrino masses vi…
Dark Matter and Collider Searches in -Symmetric 2HDM with Vector Like Leptons
Indrani Chakraborty, Dilip Kumar Ghosh, Nivedita Ghosh +1
We study the -symmetric two Higgs doublet model by adding two generations of vector like leptons (VLL) which are odd under a discrete symmetry. The lightest neutral comp…
Kundt geometries and memory effects in the Brans-Dicke theory of gravity
Siddhant Siddhant, Indranil Chakraborty, Sayan Kar
Memory effects are studied in the simplest scalar-tensor theory, the Brans--Dicke (BD) theory. To this end, we introduce, in BD theory, novel Kundt spacetimes (without and with gyr…
Probing the interaction at the high energy upgrade of the LHC
Amit Adhikary, Nabarun Chakrabarty, Indrani Chakraborty +1
An interaction at the tree level is common feature of new physics models that feature scalar triplets. In this study, we aim to probe the strength of the aforementi…
Memory effects in Kundt wave spacetimes
Indranil Chakraborty, Sayan Kar
Memory effects in the exact Kundt wave spacetimes are shown to arise in the behaviour of geodesics in such spacetimes. The types of Kundt spacetimes we consider here are direct pro…
Electroweakino searches at the HL-LHC in the baryon number violating MSSM
Rahool Kumar Barman, Biplob Bhattacherjee, Indrani Chakraborty +2
The projected reach of direct electroweakino searches at the HL-LHC ( LHC) in the framework of simplified models with R-parity violating…
Fingerprinting the contribution of colored scalars to the vertex
Nabarun Chakrabarty, Indrani Chakraborty, Dilip Kumar Ghosh
Color-octet scalars arise in various Grand Unification scenarios and also in other models of new physics. They are also postulated for minimal flavour violation. Purely phenomenolo…
Type-I thermal leptogenesis in -symmetric three Higgs doublet model
Indrani Chakraborty, Himadri Roy
Our present work explores the possibility of neutrino mass generation through {\em Type-I see-saw} mechanism and provides an explanation of the baryon asymmetry of the Universe via…
Flavour-alignment in an -symmetric Higgs sector and its RG-behaviour
Nabarun Chakrabarty, Indrani Chakraborty
A three Higgs-doublet model admitting an -symmetry can predict the observed pattern of the quark masses and their mixings. However the same symmetry also introduces potential…
Geodesic congruences in exact plane wave spacetimes and the memory effect
Indranil Chakraborty, Sayan Kar
Displacement and velocity memory effects in the exact, vacuum, plane gravitational wave line element have been studied recently by looking at the behaviour of pairs of geodesics or…
Ameliorating the Higgs mass fine-tuning problem with multi-Higgs doublet models
Nabarun Chakrabarty, Indrani Chakraborty
With no conclusive signal till date of the minimal supersymmetric and extra dimensional models at the Large Hadron Collider (LHC), the issue of fine-tuning of the Higgs mass still…
Lepton flavor violating Higgs decay at colliders
Indrani Chakraborty, Subhadeep Mondal, Biswarup Mukhopadhyaya
We estimate the smallest branching ratio for the Higgs decay channel , which can be probed at an collider and compare it with the projected reach at the…
Lepton flavor violating Higgs boson decay at the ILC
Indrani Chakraborty, Amitava Datta, Anirban Kundu
We study the possible reach of the proposed International Linear Collider (ILC) in exploring the lepton flavor violating (LFV) Higgs boson decay . Two generic types of mode…
Diphoton excess at 750 GeV: Singlet scalars confront triviality
Indrani Chakraborty, Anirban Kundu
We suggest that the recently observed diphoton excess at 750 GeV comes from a quasi-degenerate bunch of gauge singlet scalars produced and decaying through one or more vector-like…
On the scalar potential of two-Higgs doublet models
Indrani Chakraborty, Anirban Kundu
We perform a detailed analysis of the Two-Higgs Doublet Model (2HDM) potential. At the tree-level, the potential may accommodate more than one minima, one of them being the electro…
Triplet-extended scalar sector and the naturalness problem
Indrani Chakraborty, Anirban Kundu
We consider the extension of the Standard Model by a complex scalar triplet field, which occurs naturally in several models of leptogenesis and see-saw mechanism for neutrino mass…
Two-Higgs doublet models confront the naturalness problem
Indrani Chakraborty, Anirban Kundu
The conjecture that some unknown symmetry is responsible for keeping the Higgs boson light at 125 GeV does not hold for the Standard Model, where the coefficient of the quadratic d…
Controlling the fine-tuning problem with singlet scalar dark matter
Indrani Chakraborty, Anirban Kundu
Assuming that no other conventional new physics is found immediately at the LHC, we investigate how just the consistent solution of the scalar mass hierarchy problem points towards…