Computer modeling across energy scales: Tritiated graphene for neutrinos investigation

The study of neutrinos often exploits their nuclear interaction with 3H (tritium) and the analysis of the energy spectrum of the subsequently emitted electron. The international PTOLEMY Collaboration plans on constraining the neutrino mass, as well as possibly hunt for the elusive cosmic neutrino background, using leading technologies and advanced materials, such as graphene chemically functionalized with tritium. Computer simulations can be used to optimize the materials properties to this specific aim, but the huge energy range spanned from nuclear reaction to solid state effects requires specific advanced modeling methodologies. This manuscript reports a description of these efforts, as illustrated in an oral contribution presented at the SIF Congress 2024 by V. Tozzini.