• Open Access

Measurement of Final-State Correlations in Neutrino Muon-Proton Mesonless Production on Hydrocarbon at Eν=3GeV

X.-G. Lu et al. (MINERvA Collaboration)
Phys. Rev. Lett. 121, 022504 – Published 11 July 2018
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Abstract

Final-state kinematic imbalances are measured in mesonless production of νμ+Aμ+p+X in the MINERvA tracker. Initial- and final-state nuclear effects are probed using the direction of the μp transverse momentum imbalance and the initial-state momentum of the struck neutron. Differential cross sections are compared to predictions based on current approaches to medium modeling. These models underpredict the cross section at intermediate intranuclear momentum transfers that generally exceed the Fermi momenta. As neutrino interaction models need to correctly incorporate the effect of the nucleus in order to predict neutrino energy resolution in oscillation experiments, this result points to a region of phase space where additional cross section strength is needed in current models, and demonstrates a new technique that would be suitable for use in fine-grained liquid argon detectors where the effect of the nucleus may be even larger.

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  • Received 15 May 2018
  • Revised 15 June 2018

DOI:https://doi.org/10.1103/PhysRevLett.121.022504

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & FieldsNuclear Physics

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Vol. 121, Iss. 2 — 13 July 2018

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