3 citations · 9 across the 7 of their papers we have counts for
8 papers
From Non-Thermal to Thermal: Cosmological Imprints of Self-Interacting Secluded Dark Matter
Koushik Dutta, Deep Ghosh, Ahamadullah Khan
Dark matter (DM), secluded from the Standard Model (SM), can attain internal thermalization through self-interactions. We investigate the thermalization of a real scalar DM field w…
Probing freeze-in dark matter using Bose-Einstein condensate in neutron star
Deep Ghosh, Anirban Das
Neutron star (NS) is one of the most promising astrophysical targets to probe non-gravitational interaction of dark matter (DM) with visible matter. Their compactness makes them an…
Scalaron dark matter dynamics: effects of Higgs non-minimal coupling to gravity
Shibendu Gupta Choudhury, Koushik Dutta, Deep Ghosh
One of the key features of the -gravity is the embedding of a scalar field, scalaron, into the gravity sector. The scalaron interacts with the Standard Model (SM) matter field…
Time evolution of the equation of state during perturbative reheating and its impact on the inflationary tensor perturbation spectrum
Avirup Ghosh, Deep Ghosh
The spectrum of inflationary tensor perturbations is one of the very few available probes of the post-inflationary reheating epoch, and it is strongly influenced by the Universe's…
Prospects of measuring the atmospheric muon neutrino and anti-neutrino flux ratio with the ATLAS detector
Deep Ghosh, Satyanarayan Mukhopadhyay, Biswarup Mukhopadhyaya
There is a significant uncertainty in the prediction of atmospheric muon neutrino and anti-neutrino flux ratio using different flux models, especially at higher energies. We study…
Improved Treatment of Bosonic Dark Matter Dynamics in Neutron Stars: Consequences and Constraints
Koushik Dutta, Deep Ghosh, Biswarup Mukhopadhyaya
It is conceivable that a bosonic dark matter (DM) with non-gravitational interactions with SM particles will be accumulated at the center of a neutron star (NS) and can lead to bla…
Cosmological implications of inflaton-mediated dark and visible matter scatterings after reheating
Deep Ghosh, Sourav Gope, Satyanarayan Mukhopadhyay
The initial density of dark matter (DM) particles, otherwise secluded from the standard model (SM), may be generated at reheating, with an initial temperature ratio for internal th…
Revisiting big bang nucleosynthesis with a new particle species : effect of co-annihilation with nucleons
Deep Ghosh
In big bang nucleosynthesis (BBN), the light matter abundance is dictated by the neutron-to-proton () ratio which is controlled by the standard weak processes in the early uni…