Search for nucleon-nucleon correlations in neutrino-argon scattering

Abstract

A sample of two proton and no pion events selected in the ArgoNeuT neutrino scattering experiment on liquid argon target [Phys. Rev. D90 (2014) 012008] is analyzed with NuWro Monte Carlo event generator. An attempt is made to estimate how likely it is to obtain observed numbers of laboratory frame and reconstructed back-to-back nucleon pairs. For laboratory frame back-to-back events a clear data/MC discrepancy is seen. For the reconstructed nucleon pairs a good agreement is reported. We provide a simple kinematical argument why this accordance is expected.

8 pages, 5 figures; added discussion about muon acceptance, no impact on results and conclusions

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Cited by in corpus (9)

• Progress in understanding short-range structure in nuclei: an experimental perspective
• Nuclear Transparency in Monte Carlo Neutrino Event Generators
• Emission of neutron-proton and proton-proton pairs in neutrino scattering
• Pion-proton correlation in neutrino interactions on nuclei
• Two-nucleon emission in neutrino and electron scattering from nuclei: the modified convolution approximation
• Hammer events, neutrino energies, and nucleon-nucleon correlations
• Coarse grained short-range correlations
• Emission of neutron-proton and proton-proton pairs in electron scattering induced by meson-exchange currents
• First Measurement of Differential Cross Sections for Muon Neutrino Charged Current Interactions on Argon with a Two-proton Final State in the MicroBooNE Detector