Abstract

We report the first measurement of flux-integrated double-differential quasielasticlike neutrino-argon cross sections, which have been made using the Booster Neutrino Beam and the MicroBooNE detector at Fermi National Accelerator Laboratory. The data are presented as a function of kinematic imbalance variables which are sensitive to nuclear ground-state distributions and hadronic reinteraction processes. We find that the measured cross sections in different phase-space regions are sensitive to different nuclear effects. Therefore, they enable the impact of specific nuclear effects on the neutrino-nucleus interaction to be isolated more completely than was possible using previous single-differential cross section measurements. Our results provide precision data to help test and improve neutrino-nucleus interaction models. They further support ongoing neutrino-oscillation studies by establishing phase-space regions where precise reaction modeling has already been achieved.

Original languageEnglish
Article number101802
JournalPhysical Review Letters
Volume131
Issue number10
DOIs
StatePublished - 8 Sep 2023

Funding

FundersFunder number
European Union’s Horizon 2020 Marie Sklodowska-Curie Actions
Fermi Research Alliance, LLCDE-AC02-07CH11359
Fundamental Interactions
High Energy Physics and Nuclear Physics
United Kingdom Research and Innovation
National Science Foundation
U.S. Department of EnergyDE-AC02-06CH11357
Office of Science
Argonne National Laboratory
Laboratory Directed Research and Development
UK Research and Innovation
Allen Institute for Artificial Intelligence
Science and Technology Facilities Council
Royal Society
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

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