Nuclear Theory and Event Generators for Charge-Changing Neutrino Reactions

Abstract

Semi-inclusive $CC\nu$ cross sections based on factorized cross sections are studied for a selection of spectral function models with the objective of facilitating the choice of models for use as input into event generators. The basic formalism for such cross sections is presented along with an introduction to constructing spectral functions for simple models based on the independent particle shell model (IPSM), the relativistic Fermi gas model (RFG) and a local density approximation (LDA) based on the RFG. Spectral functions for these models are shown for ${}^{16}$O along with a more sophisticated model which includes nucleon-nucleon interactions \cite{ALVAREZRUSO20181}. Inclusive and semi-inclusive cross sections are calculated for these models. Although the inclusive cross sections are all of similar size and shape, the semi-inclusive cross sections are subtantially different depending upon whether the spectral functions contain some features associated with the nuclear shell model or are based on the RFG and LDA models. Calculations of average values and standard deviations of the initial neutrino energy using the semi-inclusive cross section for the various models are presented and indicate that there may be simple kinematical descriptions of the average neutrino energy which is common to all of these models.

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Cited by in corpus (15)

• Neutrino energy reconstruction from semi-inclusive samples
• Final state interactions in semi-inclusive neutrino-nucleus scattering: Application to T2K and MINER$\nu$A experiments
• Semi-inclusive charged-current neutrino-nucleus cross sections in the relativistic plane wave impulse approximation
• Inclusive cross section measurements in final states with and without protons for charged-current ${\nu }_{\mu }$-Ar scattering in MicroBooNE
• First simultaneous measurement of differential muon-neutrino charged-current cross sections on argon for final states with and without protons using MicroBooNE data
• Theoretical description of semi-inclusive T2K, Miner$\nu$A and MicroBooNE neutrino-nucleus data in the relativistic plane wave impulse approximation
• New model comparison for semi-inclusive charged-current electron and muon neutrino scattering by ${}^{40}$Ar in the energy range of the MicroBooNE experiment
• Semi-inclusive two-nucleon emission in (anti) neutrino CC scattering within the relativistic mean field framework
• Final-state interactions in neutrino-induced proton knockout from argon in MicroBooNE
• Neutrino-Nucleus scattering in the SuSA model
• The Superscaling Variable and Neutrino Energy Reconstruction, From Theoretical Predictions to Experimental Limitations
• Relativistic meson-exchange currents in semi-inclusive lepton scattering
• Benchmarking intra-nuclear cascade models for neutrino scattering with relativistic optical potentials
• General Tensor Structure for Inclusive and Semi-inclusive Electron Scattering from Polarized Spin 1/2 Targets
• A New Generation of Neutrino Cross Section Experiments: Challenges and Opportunities