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hep-ph2025
Dark Matter Capture in Supernovae Modifies Dark Photon Cooling Bounds
Aritra Gupta, Manibrata Sen
Core-collapse supernovae serve as powerful probes of light, weakly coupled particles, such as dark photons. The conventional SN1987A cooling bound constrains the dark photon mass-m…
hep-ph2024
Dark matter capture in celestial objects: Improved treatment of multiple scattering and updated constraints from white dwarfs
Basudeb Dasgupta, Aritra Gupta, Anupam Ray
We revisit dark matter (DM) capture in celestial objects, including the impact of multiple scattering, and obtain updated constraints on the DM-proton cross section using observati…
hep-ph2024
Anomaly induced cooling of Neutron Stars: A Standard Model contribution
Sabyasachi Chakraborty, Aritra Gupta, Miguel Vanvlasselaer
Young neutron stars cool via the emission of neutrinos from their core. A precise understanding of all the different processes producing neutrinos in the hot and degenerate matter…