Neutral-current neutrino-nucleus cross sections based on relativistic nuclear energy density functional

Abstract

Background: Inelastic neutrino-nucleus scattering through the weak neutral-current plays important role in stellar environment where transport of neutrinos determine the rate of cooling. Since there are no direct experimental data on neutral-current neutrino-nucleus cross sections available, only the modeling of these reactions provides the relevant input for supernova simulations. Purpose: To establish fully self-consistent framework for neutral-current neutrino-nucleus reactions based on relativistic nuclear energy density functional. Methods: Neutrino-nucleus cross sections are calculated using weak Hamiltonian and nuclear properties of initial and excited states are obtained with relativistic Hartree-Bogoliubov model and relativistic quasiparticle random phase approximation that is extended to include pion contributions for unnatural parity transitions. Results: Inelastic neutral-current neutrino-nucleus cross sections for 12C, 16O, 56Fe, 56Ni, and even isotopes {92-100}Mo as well as respective cross sections averaged over distribution of supernova neutrinos. Conclusions: The present study provides insight into neutrino-nucleus scattering cross sections in the neutral channel, their theoretical uncertainty in view of recently developed microscopic models, and paves the way for systematic self-consistent large-scale calculations involving open-shell target nuclei.

25 pages, 9 figures, 2 tables, submitted to Physical Review C

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Cited by in corpus (10)

• Time-dependent density-functional description of nuclear dynamics
• Neutrino-nucleus reactions and their role for supernova dynamics and nucleosynthesis
• Neutrinos and nucleosynthesis of elements
• Alpha induced reaction cross section measurements on 162Er for the astrophysical gamma process
• Inelastic neutrino scattering off hot nuclei in supernova environments
• Large-scale calculations of supernova neutrino-induced reactions in Z=8-82 target nuclei
• Neutrino absorption by hot nuclei in supernova environments
• Non-thermal neutrinos created by shock acceleration in successful and failed core-collapse supernova
• Modeling nuclear weak-interaction processes with relativistic energy density functionals
• Simulation of the LSD Response to the Neutrino Burst from SN 1987A