State of the Universe
Constraining Sommerfeld-Enhancement via Inflationary Perturbations & CMB: Dark Matter & Neutrino Interactions
by Dr. Anish Ghoshal (The National Institute for Nuclear Physics, Rome)
Friday, May 28, 2021
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Description |
In ΛCDM cosmology, Dark Matter (DM) and neutrinos are assumed to be non- interacting. However, it is possible to have scenarios, where DM-neutrino interaction may be present, leading to scattering of DM with neutrinos and annihilation of DM into neutrinos. We investigate the viability of such scenarios in the light of cosmological data by making use of the PLANCK-2018 and BOSS-BAO 2014 dataset and constrain these processes in the light of the same. We also discuss a particle DM model where DM-neutrino interaction is present and map the constraints to the parameter space of the model. |
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