9 papers
Probing super-heavy dark matter with ultra-high-energy gamma rays
Marco Chianese, Ninetta Saviano, Sara Cesare +4
We refine the constraints on the lifetime of decaying super-heavy dark matter particles (SHDM), with masses ranging from to GeV, by analyzing ultra-high-energy (UH…
Induced Gravitational Waves as Cosmic Tracers of Leptogenesis
Marco Chianese, Guillem Domènech, Guillem Domènech +3
We demonstrate that induced gravitational waves (IGWs) can naturally emerge within well-motivated realizations of thermal leptogenesis, thereby providing a possible observational h…
Impact of memory-burdened black holes on primordial gravitational waves in light of Pulsar Timing Array
Peter Athron, Marco Chianese, Satyabrata Datta +2
Blue-tilted Gravitational Waves (BGWs) have been proposed as a potential candidate for the cosmic gravitational waves detected by Pulsar Timing Arrays (PTA). In the standard cosmol…
Impact of memory-burdened primordial black holes on high-scale leptogenesis
Roberta Calabrese, Marco Chianese, Ninetta Saviano
We explore the impact of the back-reaction of evaporation on the quantum state of Primordial Black Holes (PBHs), known as ``memory burden", on the baryon asymmetry production in th…
Neutrino Theory in the Precision Era
Asmaa Abada, Gabriela Barenboim, Toni Bertólez-MartÃnez +76
This document summarises discussions on future directions in theoretical neutrino physics, which are the outcome of a neutrino theory workshop held at CERN in February 2025. The st…
Light burden of memory: Constraining primordial black holes with high-energy neutrinos
Marco Chianese, Andrea Boccia, Fabio Iocco +2
Recent studies point out that quantum effects, referred to as "memory burden", may slow down the evaporation of black holes. As a result, a population of light primordial black hol…