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Probing nuclear effects with neutrino-induced charged-current neutral pion production
- Source :
- Phys. Rev. D 102, 072007 (2020)
- Publication Year :
- 2020
-
Abstract
- We study neutrino-induced charged-current (CC) $\pi^0$ production on carbon nuclei using events with fully imaged final-state proton-$\pi^0$ systems. Novel use of final-state correlations based on transverse kinematic imbalance enable the first measurements of the struck nucleon's Fermi motion, of the intranuclear momentum transfer (IMT) dynamics, and of the final-state hadronic momentum configuration in neutrino pion production. Event distributions are presented for i) the momenta of neutrino-struck neutrons below the Fermi surface, ii) the direction of missing transverse momentum characterizing the strength of IMT, and iii) proton-pion momentum imbalance with respect to the lepton scattering plane. The observed Fermi motion and IMT strength are compared to the previous MINERvA measurement of neutrino CC quasielastic-like production. The measured shapes and absolute rates of these distributions, as well as the cross-section asymmetries show tensions with predictions from current neutrino generator models.<br />Comment: 9 pages, 8 figures. v3: PRD-accepted version, with full package of supplemental materials; v4: added 2 missing references; v5: corrected typo in Eq. 8
- Subjects :
- High Energy Physics - Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 102, 072007 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.2002.05812
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.102.072007