Charged-current quasielastic neutrino scattering off nuclei with nucleon-nucleon short-range correlations

Abstract：

In recent years, neutrino-nucleus scattering has been extensively researched to investigate nuclear structures and interactions between neutrinos and nucleons. In this study, a charged-current quasielastic (CCQE) neutrino-nucleus scattering model is developed to explore the nuclear mean-field dynamics and short-range correlation effects. In this model, the effect of the nuclear structure is depicted using the scaling function $ f(\psi) $ , whereas the neutrino-nucleon interaction is represented by the elementary weak cross section $ \sigma_0 $ . The results indicate that the double-differential cross section of the scattered muon is influenced by the energy $ E $ and momentum $ {\bf{p}} $ of the nucleon in the nuclei, and the total cross section depends primarily on the incident neutrino energy $ E_\nu $ . Furthermore, incorporating short-range correlations results in the flux-integrated differential cross sections in the high- $ T_\mu $ region producing larger values, a longer tail, and achieving better experimental consistency. It eventually elucidates the physical relationship between the neutrino-nucleus scattering cross section and variation in the incident neutrino energy. This paper shares insights for the research on nucleon dynamics and presents detailed investigations of the neutrino-nucleus scattering mechanism.