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### Electronic data

• 2102.03346v1

Submitted manuscript, 2.29 MB, PDF document

• TKINuMuCC1piNp_PRD_accepted

Accepted author manuscript, 2.1 MB, PDF document

• PhysRevD.103.112009

Final published version, 1.55 MB, PDF document

## First T2K measurement of transverse kinematic imbalance in the muon-neutrino charged-current single-$π^+$ production channel containing at least one proton

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
Article number 112009 21/06/2021 Physical Review D 11 103 27 Published English

### Abstract

This paper reports the first T2K measurement of the transverse kinematic imbalance in the single-$\pi^+$ production channel of neutrino interactions. We measure the differential cross sections in the muon-neutrino charged-current interaction on hydrocarbon with a single $\pi^+$ and at least one proton in the final state, at the ND280 off-axis near detector of the T2K experiment. The extracted cross sections are compared to the predictions from different neutrino-nucleus interaction event generators. Overall, the results show a preference for models which have a more realistic treatment of nuclear medium effects including the initial nuclear state and final-state interactions.