Constraining neutrino reactions in hot and dense matter using terrestrial experiments and ab initio calculations

Neutrinos play an important role in determining the evolution of massive stars. They also serve as one of the most important messengers that may directly probe the properties of hot & dense matter in the interior region of core-collapse supernovae (CCSNe) and binary neutron star mergers.

In this talk, I will discuss the correlations between neutrino reaction rates in dense matter and the response properties of nuclei/nuclear matter that can be directly measured or calculated using ab initio methods. Based on that, I will then introduce our recent works that aim to constrain the properties of neutrino-dense matter reactions by using terrestrial nuclear experiments and ab-initial many-body calculations. Finally, I will show both the charged current and neutral current neutrino opacities in a wide range of densities, temperatures, proton fractions and incoming neutrino energies.