Inclusive electron scattering and the genie neutrino event generator
Name
PhysRevD.103.113003.pdf
Description
Published version
Size
1.5 MB
Format
Adobe PDF
Checksum (MD5)
0baf1f8f34013ebc32821bbc11cc38e3
Author(s)
Papadopoulou, A
Ashkenazi, A
Gardiner, S
Betancourt, M
Dytman, S
Weinstein, LB
Piasetzky, E
Hauenstein, F
Khachatryan, M
Dolan, S
Date Issued
2021
Journal
Physical Review D
Publisher
American Physical Society (APS)
Citation
Papadopoulou, A, Ashkenazi, A, Gardiner, S, Betancourt, M, Dytman, S et al. 2021. "Inclusive electron scattering and the genie neutrino event generator." Physical Review D, 103 (11).
Version
Final published version
Abstract
The extraction of neutrino mixing parameters from accelerator-based neutrino
oscillation experiments relies on proper modeling of neutrino-nucleus
scattering processes using neutrino-interaction event generators. Experimental
tests of these generators are difficult due to the broad range of neutrino
energies produced in accelerator-based beams and the low statistics of current
experiments. Here we overcome these difficulties by exploiting the similarity
of neutrino and electron interactions with nuclei to test neutrino event
generators using high-precision inclusive electron scattering data. To this
end, we revised the electron-scattering mode of the GENIE event generator
($e$-GENIE) to include electron-nucleus bremsstrahlung radiation effects and to
use, when relevant, the exact same physics models and model parameters, as the
standard neutrino-scattering version. We also implemented new models for
quasielastic (QE) scattering and meson exchange currents (MEC) based on the
theory-inspired SuSAv2 approach. Comparing the new $e$-GENIE predictions with
inclusive electron scattering data, we find an overall adequate description of
the data in the QE- and MEC-dominated lower energy transfer regime, especially
when using the SuSAv2 models. Higher energy transfer-interactions, which are
dominated by resonance production, are still not well modeled by $e$-GENIE.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVD.103.113003
