3 papers
hep-ph2026
Probing Inelastic Dark Matter via Cosmic-Ray Upscattering in NGC 1068
Eung Jin Chun, Sanjoy Mandal, Abhishek Roy
We study constraints on sub-GeV inelastic dark matter (iDM) from cosmic-ray (CR) cooling in the active galactic nucleus (AGN) NGC 1068. In dense dark matter (DM) spikes surrounding…
hep-ph2026
Scrutinizing Fermionic Dark Matter in Scotogenic Model with Low Reheating Temperature
Abhishek Roy, Rameswar Sahu
The scotogenic model provides a minimal and elegant framework that simultaneously explains neutrino masses and accommodates a viable dark matter (DM) candidate. In this work, we in…
hep-ph2026
Resurrecting Kaluza-Klein Dark Matter with Low-Temperature Reheating
Kirtiman Ghosh, Abhishek Roy, Rameswar Sahu
In Universal Extra Dimension (UED) scenarios, the lightest Kaluza-Klein (KK) particle is naturally stable due to a remnant discrete symmetry, KK parity, arising from extra-dimensio…