47 citations · 472 across the 31 of their papers we have counts for
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Dark Gauge Symmetry
Debasish Borah, Ernest Ma, Dibyendu Nanda
The dark sector is postulated to be invariant under an gauge symmetry, spontaneously broken by a Higgs quadruplet to a conserved residual symmetry. The res…
Observable in Dirac Scotogenic Model
Debasish Borah, Pritam Das, Dibyendu Nanda
We study the possibility of probing the radiative Dirac seesaw model with dark sector particles going inside the loop, popularly referred to as the Dirac scotogenic model via measu…
CMB imprints of high scale non-thermal leptogenesis
Anish Ghoshal, Dibyendu Nanda, Abhijit Kumar Saha
We study the imprints of high scale non-thermal leptogenesis on cosmic microwave background (CMB) from the measurements of inflationary spectral index () and tensor-to-scalar…
Concealing Dirac neutrinos from cosmic microwave background
Anirban Biswas, Dilip Kumar Ghosh, Dibyendu Nanda
The existence of prolonged radiation domination prior to the Big Bang Nucleosynthesis (BBN), starting just after the inflationary epoch, is not yet established unanimously. If inst…
Long lived inert Higgs in fast expanding universe and its imprint on cosmic microwave background
Dilip Kumar Ghosh, Sk Jeesun, Dibyendu Nanda
Presence of any extra radiation energy density at the time of cosmic microwave background formation can significantly impact the measurement of the effective relativistic neutrino…
Freeze-in Dark Matter via Light Dirac Neutrino Portal
Anirban Biswas, Debasish Borah, Nayan Das +1
We propose a scenario where dark matter (DM) can be generated non-thermally due to the presence of a light Dirac neutrino portal between the standard model (SM) and dark sector par…
Dark Gauge Symmetry and Scotogenic Dirac Neutrinos
Debasish Borah, Ernest Ma, Dibyendu Nanda
Dark matter is postulated to transform under the non-Abelian gauge symmetry. Its connection to Dirac neutrino masses is explored.
Type II Dirac Seesaw with Observable in the light of W-mass Anomaly
Debasish Borah, Satyabrata Mahapatra, Dibyendu Nanda +1
We propose a type II seesaw model for light Dirac neutrinos to provide an explanation for the recently reported anomaly in W boson mass by the CDF collaboration with statistic…