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.
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