Probing nuclear effects with neutrino-induced charged-current neutral pion production
Abstract
We study neutrino-induced charged-current (CC) production on carbon nuclei using events with fully imaged final-state proton- 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.
Keywords
Cite
@article{arxiv.2002.05812,
title = {Probing nuclear effects with neutrino-induced charged-current neutral pion production},
author = {D. Coplowe and O. Altinok and Z. Ahmad Dar and F. Akbar and D. A. Andrade and G. D. Barr and A. Bashyal and A. Bercellie and M. Betancourt and A. Bodek and A. Bravar and H. Budd and G. Caceres and T. Cai and M. F. Carneiro and H. da Motta and S. A. Dytman and G. A. Díaz and J. Felix and L. Fields and A. Filkins and R. Fine and A. M. Gago and H. Gallagher and A. Ghosh and R. Gran and D. A. Harris and S. Henry and S. Jena and J. Kleykamp and M. Kordosky and D. Last and T. Le and A. Lozano and X. -G. Lu and E. Maher and S. Manly and W. A. Mann and C. Mauger and K. S. McFarland and B. Messerly and J. Miller and J. G. Morfín and D. Naples and J. K. Nelson and C. Nguyen and A. Norrick and A. Olivier and V. Paolone and G. N. Perdue and M. A. Ramírez and R. D. Ransome and H. Ray and P. A. Rodrigues and D. Ruterbories and H. Schellman and J. T. Sobczyk and C. J. Solano Salinas and H. Su and M. Sultana and V. S. Syrotenko and E. Valencia and D. Wark and A. Weber and M. Wospakrik and C. Wret and B. Yaeggy and L. Zazueta},
journal= {arXiv preprint arXiv:2002.05812},
year = {2024}
}
Comments
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