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.