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Title: Measurement of Final-State Correlations in Neutrino Muon-Proton Mesonless Production on Hydrocarbon at E ν = 3 GeV

Final-state kinematic imbalances are measured in mesonless production of ν μ + A → μ - + p + X in the MINERvA tracker. Initial- and final-state nuclear effects are probed using the direction of the μ--p 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. Here, 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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Publication Date:
Report Number(s):
arXiv:1805.05486; FERMILAB-PUB-18-179-ND
Journal ID: ISSN 0031-9007; PRLTAO; 1673175
Grant/Contract Number:
AC02-07CH11359
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 2; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
MINERvA Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1459759
Alternate Identifier(s):
OSTI ID: 1440009