ACHILLES: A novel event generator for electron- and neutrino-nucleus scattering

Abstract

We present a novel lepton-nucleus event generator: ACHILLES, A CHIcagoLand Lepton Event Simulator. The generator factorizes the primary interaction from the propagation of hadrons in the nucleus, which allows for a great deal of modularity, facilitating further improvements and interfaces with existing codes. We validate our generator against high quality electron-carbon scattering data in the quasielastic regime, including the recent CLAS/e4v reanalysis of existing data. We find good agreement in both inclusive and exclusive distributions. By varying the assumptions on the propagation of knocked out nucleons throughout the nucleus, we estimate a component of theoretical uncertainties. We also propose novel observables that will allow for further testing of lepton-nucleus scattering models. ACHILLES is readily extendable to generate neutrino-nucleus scattering events.

19 pages, 13 figures

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Cited by in corpus (13)

• Target mass corrections in lepton--nucleus DIS: theory and applications to nuclear PDFs
• First Measurement of Missing Energy Due to Nuclear Effects in Monoenergetic Neutrino Charged Current Interactions
• Implementation of a relativistic distorted wave impulse approximation model into the NEUT event generator
• Constraining non-standard neutrino interactions with neutral current events at long-baseline oscillation experiments
• Final-state interactions in neutrino-induced proton knockout from argon in MicroBooNE
• First Detailed Calculation of Atmospheric Neutrino Foregrounds to the Diffuse Supernova Neutrino Background in Super-Kamiokande
• Implementation and investigation of electron-nucleus scattering in the \textsc{NEUT} neutrino event generator
• NuHepMC: A standardized event record format for neutrino event generators
• Transfer Learning for Neutrino Scattering: Domain Adaptation with GANs
• Improving Neutrino-Nuclei Interaction Models: Recommendations and Case Studies on Peelle's Pertinent Puzzle
• Sampling Off-Axis Neutrino Fluxes with the Short-Baseline Near Detector
• UFO 2.0 -- The Universal Feynman Output format
• Single pion-production and pion propagation in Achilles