6 papers
Common origin of radiative neutrino mass, dark matter and leptogenesis in scotogenic Georgi-Machacek model
Shao-Long Chen, Amit Dutta Banik, Ze-Kun Liu
We explore the phenomenology of the Georgi-Machacek model extended with two Higgs doublets and vector fermion doublets invariant under $SU(2)_L \times U(1)_Y\times \mathcal {Z}_4 \…
Two Component Singlet-Triplet Scalar Dark Matter and Electroweak Vacuum Stability
Amit Dutta Banik, Rishav Roshan, Arunansu Sil
We propose a two component dark matter set-up by extending the Standard Model with a singlet and a hypercharge-less triplet scalars, each of them being odd under different sy…
Leptogenesis in fast expanding Universe
Shao-Long Chen, Amit Dutta Banik, Ze-Kun Liu
With the consideration of a fast expanding Universe in effect due to an additional scalar field, we present a study of leptogenesis in non-standard cosmology. The Hubble expansion…
Signatures of Synchrotron Radiation from the Annihilation of Dark Matter at the Galactic Centre
Avik Paul, Debasish Majumdar, Amit Dutta Banik
We propose a fermionic dark matter model by extending Standard Model with a Dirac fermion and a real pseudoscalar. The fermion dark matter particle interacts with the Standard Mode…
Probing Multicomponent Extension of Inert Doublet Model with a Vector Dark Matter
Sreemanti Chakraborti, Amit Dutta Banik, Rashidul Islam
Although theoretically well-motivated as a minimal consistent Dark Matter (DM) model, the Inert Doublet Model (IDM) fell short in explaining the existence of DM in the intermediate…
Scalar assisted singlet doublet fermion dark matter model and electroweak vacuum stability
Amit Dutta Banik, Abhijit Kumar Saha, Arunansu Sil
We extend the so-called singlet doublet dark matter model, where the dark matter is an admixture of a Standard Model singlet and a pair of electroweak doublet fermions, by a single…