39 citations · 173 across the 21 of their papers we have counts for
21 papers
Leptogenesis in Brane-modified cosmology: Signatures in primordial gravitational waves
Amit Dutta Banik, Arnab Paul
We investigate the implications of brane-inspired modifications of the evolutionary history of the early universe on the process of baryogenesis via leptogenesis. A modified cosmic…
Exploring the Co-SIMP dark matter model using the 21-cm signal from the dark ages
Debarun Paul, Sourav Pal, Deepthi Moorkanat +3
The redshifted 21-cm signal from the dark ages offers a powerful probe of cosmological models and the underlying dark matter (DM) microphysics. We investigate deviations from the s…
Exploring the dark annihilation: multi-component asymmetric and symmetric dark matter
Amit Dutta Banik
The article describes Boltzmann equations for a potential case of multi-particle dark matter with symmetric and asymmetric dark matter components in a model-independent approach. W…
Confronting the dark matter capture rate with a continuous gravitational wave probe of local neutron stars
Pooja Bhattacharjee, Amit Dutta Banik
Continuous gravitational waves (CGWs) from various astrophysical sources are one of the many future probes of upcoming gravitational wave (GW) search missions. Neutron stars (NSs)…
Non-thermal WIMP Production from Higher Order Moduli Decay
Amitayus Banik, Manuel Drees
In a non-standard cosmological scenario, heavy, long-lived particles, which we call moduli, dominate the energy density prior to Big Bang Nucleosynthesis. Weakly Interacting Massiv…
A Solar Investigation of Multicomponent Dark Matter
Amit Dutta Banik
If multiple thermal weakly interacting massive particle (WIMP) dark matter candidates exist, then their capture and annihilation dynamics inside a massive stars such as Sun could c…
Accommodating muon and leptogenesis in a scotogenic model
A. Alvarez, A. Banik, R. Cepedello +4
We present a detailed study of a scotogenic model accommodating dark matter, neutrino masses and the anomalous magnetic moment of the muon while being consistent with the existing…
Minimal Leptogenesis in Brane-inspired Cosmology
Alessandro Di Marco, Amit Dutta Banik, Anish Ghoshal +1
We discuss how a post inflationary reheating phase characterized by a nonstandard multiple scalar field cosmology can change the thermal history of the universe, affecting minimal…
Confronting cosmic ray electron and positron excesses with hybrid triplet Higgs portal dark matter
Shao-Long Chen, Amit Dutta Banik, Ze-Kun Liu
We perform a detailed study of scalar dark matter with triplet Higgs extensions of the Standard Model in order to explain the cosmic ray electron and positron excesses reported by…
Implications of NANOGrav results and UV freeze-in in a fast-expanding Universe
Basabendu Barman, Amit Dutta Banik, Avik Paul
Recent pulsar timing data reported by the NANOGrav collaboration indicates the existence of a stochastic gravitational wave (GW) background at a frequency . W…
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…
Leptophilic-portal Dark Matter in the Light of AMS-02 positron excess
Sayan Ghosh, Amit Dutta Banik, Eung Jin Chun +1
We revisit dark matter annihilation as an explanation of the positron excess reported recently by the AMS-02 satellite-borne experiment. To this end, we propose a particle dark mat…
The Violation of Equivalence Principle and Four Neutrino Oscillations for Long Baseline Neutrinos
Madhurima Pandey, Debasish Majumdar, Amit Dutta Banik +1
Violation of equivalence principle predicts that neutrinos of different flavor couple differently with gravity. Such a scenario can give rise to gravity induced flavor oscillations…
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…
Probing a Four Flavour vis-a-vis Three Flavour Neutrino Mixing for UHE Neutrino Signals at a 1 Detector
Madhurima Pandey, Debasish Majumdar, Amit Dutta Banik
We consider a four flavour scenario for the neutrinos where an extra sterile neutrino is introduced with the three families of active neutrinos and study the deviation from three f…
Velocity Induced Neutrino Oscillation and its Possible Implications for Long Baseline Neutrinos
Amit Dutta Banik, Debasish Majumdar
If the three types of active neutrinos possess different maximum attainable velocities and the neutrino eigenstates in the velocity basis are different from those in the flavour (a…
Low Energy Gamma Ray Excess Confronting a Singlet Scalar Extended Inert Doublet Dark Matter Model
Amit Dutta Banik, Debasish Majumdar
Recent study of gamma rays originating from the region of galactic centre has confirmed an anomalous -ray excess within the energy range 1-3 GeV. This can be explained as the co…