Implementation of the CRPA model in the GENIE event generator and analysis of nuclear effects in low-energy transfer neutrino-nucleus interactions

Abstract

We present the implementation and validation of the Hartree-Fock continuum random phase approximation (HF-CRPA) model in the GENIE neutrino-nucleus interaction event generator and a comparison of the subsequent predictions to experimental measurements of lepton kinematics from interactions with no mesons in the final state. These predictions are also compared to those of other models available in GENIE. It is shown that, with respect to these models, HF-CRPA predicts a significantly different evolution of the cross section when moving between different interaction targets, when considering incoming anti-neutrinos compared to neutrinos and when changing neutrino energies. These differences are most apparent for interactions with low energy and momentum transfer. It is also clear that the impact of nucleon correlations within the HF-CRPA framework is very different than in GENIE's standard implementation of RPA corrections. Since many neutrino oscillation experiments rely on their input model to extrapolate between targets, flavours, and neutrino energies, the newly implemented HF-CRPA model provides a useful means to verify that such differences between models are appropriately covered in oscillation analysis systematic error budgets.

arXiv comment14 pages, 12 figures. Version concurrent with published paper. Metadata updated

References in corpus (31)

• The GENIE Neutrino Monte Carlo Generator
• The T2K Experiment
• Hyper-Kamiokande Design Report
• Inclusive Charged--Current Neutrino--Nucleus Reactions
• NuSTEC White Paper: Status and Challenges of Neutrino-Nucleus Scattering
• The T2K Neutrino Flux Prediction
• Using Electron Scattering Superscaling to predict Charge-changing Neutrino Cross Sections in Nuclei
• Lepton Mass Effects in Single Pion Production by Neutrinos
• Extensions of Superscaling from Relativistic Mean Field Theory: the SuSAv2 Model
• Low-energy excitations and quasielastic contribution to electron-nucleus and neutrino-nucleus scattering in the continuum random phase approximation
• Inclusive electron scattering within the SuSAv2-MEC approach
• NUISANCE: a neutrino cross-section generator tuning and comparison framework
• Meson-exchange currents and quasielastic predictions for charged-current neutrino-12C scattering in the superscaling approach
• Relativistic model of 2p-2h meson exchange currents in (anti)neutrino scattering
• Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics
• Implementation of the SuSAv2-MEC 1p1h and 2p2h models in GENIE and analysis of nuclear effects in T2K measurements
• Electron-neutrino scattering off nuclei from two different theoretical perspectives
• Simultaneous measurement of the muon neutrino charged-current cross section on oxygen and carbon without pions in the final state at T2K
• The GENIE Neutrino Monte Carlo Generator: Physics and User Manual
• Ab initio study of $({\mathbf{\nu }}_{\mathbf{\ell }},{\mathbf{\ell }}^{-})$ and $({\overline{\mathbf{\nu }}}_{\mathbf{\ell }},{\mathbf{\ell }}^{+})$ inclusive scattering in ${}^{12}$C: confronting the MiniBooNE and T2K CCQE data
• Constraints in modeling the quasielastic response in inclusive lepton-nucleus scattering
• GENIE implementation of IFIC Valencia model for QE-like 2p2h neutrino-nucleus cross section
• Electron versus muon neutrino induced cross sections in charged current quasi-elastic processes
• First combined measurement of the muon neutrino and antineutrino charged-current cross section without pions in the final state at T2K
• Emission of neutron-proton and proton-proton pairs in neutrino scattering
• Quasielastic contribution to antineutrino-nucleus scattering
• Modeling quasielastic interactions of monoenergetic kaon decay-at-rest neutrinos
• $A$-dependence of quasielastic charged-current neutrino-nucleus cross sections
• Mean field approach to reconstructed neutrino energy distributions in accelerator-based experiments
• Angular distributions in Monte Carlo event generation of weak single-pion production
• Nuclear medium effects in neutrino- and antineutrino-nucleus scattering

Cited by in corpus (8)

• Event Generators for High-Energy Physics Experiments
• ACHILLES: A novel event generator for electron- and neutrino-nucleus scattering
• Final state interactions in semi-inclusive neutrino-nucleus scattering: Application to T2K and MINER$\nu$A experiments
• New model comparison for semi-inclusive charged-current electron and muon neutrino scattering by ${}^{40}$Ar in the energy range of the MicroBooNE experiment
• Measurement of Electron Neutrino and Antineutrino Cross Sections at Low Momentum Transfer
• Assessing the theory-data tension in neutrino-induced charged pion production: the effect of final-state nucleon distortion
• Implementation of the Martini-Ericson-Chanfray-Marteau RPA-based neutrino and antineutrino cross-section model in the GENIE neutrino event generator
• Monte Carlo study of KDAR ${\nu }_{\mu }$ charged-current scattering on carbon