2 papers
hep-ph2026
Dark Matter Freeze-in from a Reheaton
Avirup Ghosh, Alexei H. Sopov, Raymond R. Volkas
We consider the Standard Model (SM) extended by a secluded gauge sector encompassing a Dirac fermion () dark matter (DM), an abelian gauge boson and a SM-si…
gr-qc2025
Laws of black hole mechanics in the Einstein-Gauss-Bonnet theory
Ayan Chatterjee, Sahil Devdutt, Avirup Ghosh
We extend the isolated horizon formalism to include rotating black holes arising in five dimensional Einstein-Gauss-Bonnet (EGB) theory of gravity, and derive the laws of black hol…