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We present a set of new generalized kinematic imbalance variables that can bemeasured in neutrino scattering. These variables extend previous measurementsof kinematic imbalance on the transverse plane, and are more sensitive tomodeling of nuclear effects. We demonstrate the enhanced power of thesevariables using simulation, and then use the MicroBooNE detector to measurethem for the first time. We report flux-integrated single- anddouble-differential measurements of charged-current muon neutrino scattering onargon using a topolgy with one muon and one proton in the final state as afunction of these novel kinematic imbalance variables. These measurements allowus to demonstrate that the treatment of charged current quasielasticinteractions in GENIE version 2 is inadequate to describe data. Further, theyreveal tensions with more modern generator predictions particularly in regionsof phase space where final state interactions are important.

Measurement of nuclear effects in neutrino-argon interactions using generalized kinematic imbalance variables with the MicroBooNE detector