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hep-ph2026
Leptogenesis and Planck-scale black hole remnants in a Pati-Salam cosmology
Arnab Chaudhuri, Erdenebulgan Lkhagvadorj, Satyabrata Mahapatra
We study leptogenesis and Planck-scale remnant dark matter from primordial black hole (PBH) evaporation in a minimal Pati-Salam cosmology, with the gauge symmetry broken before inf…
hep-ph2026
Scalar Portal Verifiable Light Dark Matter and Correlated Gravitational Wave Signatures
Ki-Young Choi, Erdenebulgan Lkhagvadorj, Satyabrata Mahapatra
The lack of signals in direct detection experiments has placed the canonical Weakly Interacting Massive Particle (WIMP) paradigm under severe tension, motivating a shift toward the…