Neutral current neutrino-nucleus interactions at intermediate energies

Abstract

We have extended our model for charged current neutrino-nucleus interactions to neutral current reactions. For the elementary neutrino-nucleon interaction, we take into account quasielastic scattering, Delta excitation and the excitation of the resonances in the second resonance region. Our model for the neutrino-nucleus collisions includes in-medium effects such as Fermi motion, Pauli blocking, nuclear binding, and final-state interactions. They are implemented by means of the Giessen Boltzmann-Uehling-Uhlenbeck (GiBUU) coupled-channel transport model. This allows us to study exclusive channels, namely pion production and nucleon knockout. We find that final-state interactions modify considerably the distributions through rescattering, charge-exchange and absorption. Side-feeding induced by charge-exchange scattering is important in both cases. In the case of pions, there is a strong absorption associated with the in-medium pionless decay modes of the Delta, while nucleon knockout exhibits a considerable enhancement of low energy nucleons due to rescattering. At neutrino energies above 1 GeV, we also obtain that the contribution to nucleon knockout from Delta excitation is comparable to that from quasielastic scattering.

16 pages, 10 figures; v2: version to be published in Phys. Rev. C, comparison with results of Paschos et al. removed

References in corpus (7)

• Resonance production by neutrinos: The second resonance region
• Photoproduction of pi0-mesons from nuclei
• Determination of the strange form factors of the nucleon from $\nu p$, $\bar{\nu }p$, and parity-violating $\vec{e}p$ elastic scattering
• Superscaling and neutral current quasielastic neutrino-nucleus scattering
• Neutrino-nucleus quasi-elastic scattering and strange quark effects
• Low-energy pions in nuclear matter and 2pi photoproduction within a BUU transport model
• Pion induced double charge exchange reactions in the Delta resonance region

Cited by in corpus (8)

• Electron- and neutrino-nucleus scattering from the quasielastic to the resonance region
• Neutrino induced pion production at MiniBooNE and K2K
• The influence of the nuclear medium on inclusive electron and neutrino scattering off nuclei
• Superscaling and Charge-Changing Neutrino Scattering from Nuclei in the $\mathbf{\Delta }$-Region beyond the Relativistic Fermi Gas Model
• Ambiguities of neutrino(antineutrino) scattering on the nucleon due to the uncertainties of relevant strangeness form factors
• Neutral-current Neutrino-nucleus Scattering in Quasielastic Region
• Longitudinal and Transverse Scaling Functions within the Coherent Density Fluctuation Model
• Neutral Current induced ${\pi }^0$ production and neutrino magnetic moment