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hep-ph2026
Leptogenesis in Brane-modified cosmology: Signatures in primordial gravitational waves
Amit Dutta Banik, Arnab Paul
We investigate the implications of brane-inspired modifications of the evolutionary history of the early universe on the process of baryogenesis via leptogenesis. A modified cosmic…
astro-ph.CO2026
Primary gravitational waves at high frequencies II: Emergence of the exponential cut-off in the power spectrum
Alipriyo Hoory, Jerome Martin, Arnab Paul +1
[Abridged] In slow roll inflation, the power spectrum (PS) of primary gravitational waves (PGWs) generated from the quantum vacuum rises as over wave numbers which never…