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arXiv · 2606.23559

Probing Nuclear Effects with Transverse Kinematic Imbalance in Muon-neutrino Induced Charged-Current $\pi^0$ Production on Argon with the MicroBooNE Detector

MicroBooNE collaboration·P. Abratenko·D. Andrade Aldana·J. Asaadi·A. Ashkenazi·S. Balasubramanian·B. Baller·A. Barnard·G. Barr·D. Barrow·J. Barrow·V. Basque·J. Bateman·B. Behera·O. Benevides Rodrigues·S. Berkman·A. Bhat·V. Bhelande·M. Bhattacharya·A. Binau·M. Bishai·A. Blake·B. Bogart·T. Bolton·M. B. Brunetti·L. Camilleri·D. Caratelli·F. Cavanna·G. Cerati·A. Chappell·Y. Chen·J. M. Conrad·M. Convery·L. Cooper-Troendle·J. I. Crespo-Anadon·R. Cross·M. Del Tutto·S. R. Dennis·P. Detje·R. Diurba·Z. Djurcic·K. Duffy·S. Dytman·B. Eberly·P. Englezos·A. Ereditato·J. J. Evans·C. Fang·W. Foreman·B. T. Fleming·D. Franco·A. P. Furmanski·F. Gao·D. Garcia-Gamez·S. Gardiner·G. Ge·S. Gollapinni·E. Gramellini·P. Green·H. Greenlee·L. Gu·W. Gu·R. Guenette·L. Hagaman·M. D. Handley·M. Harrison·S. Hawkins·A. Hergenhan·O. Hen·C. Hilgenberg·G. A. Horton-Smith·A. Hussain·B. Irwin·M. S. Ismail·C. James·X. Ji·J. H. Jo·A. Johnson·R. A. Johnson·D. Kalra·G. Karagiorgi·A. Kelly·W. Ketchum·M. Kirby·T. Kobilarcik·K. Kumar·N. Lane·J. -Y. Li·Y. Li·K. Lin·B. R. Littlejohn·L. Liu·S. Liu·W. C. Louis·X. Luo·T. Mahmud·N. Majeed·C. Mariani·J. Marshall·F. Martinez Lopez
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Abstract

Neutrino-nucleus cross-section measurements are needed to improve interaction modeling and to enable precision neutrino oscillation measurements in upcoming experiments such as the Deep Underground Neutrino Experiment (DUNE), Hyper-Kamiokande, and the Short-Baseline Neutrino program. Baryon-resonance neutrino interactions constitute a dominant contribution near the peak of the DUNE neutrino energy spectrum. We present the first measurement of muon neutrino charged-current resonance-like interactions on argon using transverse kinematic imbalance variables with the MicroBooNE detector. These observables are highly sensitive to the modeling of final-state interactions. This measurement probes kinematic imbalances using the reconstructed momenta of the muon, leading proton, and neutral pion. A comprehensive characterization of the $\pi^0$-proton final state is presented; however, none of the models considered are able to simultaneously reproduce all measured observables.

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MicroBooNE collaboration, P. Abratenko, D. Andrade Aldana, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, A. Barnard, G. Barr, D. Barrow, J. Barrow, V. Basque, J. Bateman, B. Behera, O. Benevides Rodrigues, S. Berkman, A. Bhat, V. Bhelande, M. Bhattacharya, A. Binau, M. Bishai, A. Blake, B. Bogart, T. Bolton, M. B. Brunetti, L. Camilleri, D. Caratelli, F. Cavanna, G. Cerati, A. Chappell, Y. Chen, J. M. Conrad, M. Convery, L. Cooper-Troendle, J. I. Crespo-Anadon, R. Cross, M. Del Tutto, S. R. Dennis, P. Detje, R. Diurba, Z. Djurcic, K. Duffy, S. Dytman, B. Eberly, P. Englezos, A. Ereditato, J. J. Evans, C. Fang, W. Foreman, B. T. Fleming, D. Franco, A. P. Furmanski, F. Gao, D. Garcia-Gamez, S. Gardiner, G. Ge, S. Gollapinni, E. Gramellini, P. Green, H. Greenlee, L. Gu, W. Gu, R. Guenette, L. Hagaman, M. D. Handley, M. Harrison, S. Hawkins, A. Hergenhan, O. Hen, C. Hilgenberg, G. A. Horton-Smith, A. Hussain, B. Irwin, M. S. Ismail, C. James, X. Ji, J. H. Jo, A. Johnson, R. A. Johnson, D. Kalra, G. Karagiorgi, A. Kelly, W. Ketchum, M. Kirby, T. Kobilarcik, K. Kumar, N. Lane, J. -Y. Li, Y. Li, K. Lin, B. R. Littlejohn, L. Liu, S. Liu, W. C. Louis, X. Luo, T. Mahmud, N. Majeed, C. Mariani, J. Marshall, F. Martinez Lopez. 2026-06-22. Probing Nuclear Effects with Transverse Kinematic Imbalance in Muon-neutrino Induced Charged-Current $\pi^0$ Production on Argon with the MicroBooNE Detector. https://arxiv.org/abs/2606.23559

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