Title
Probing nuclear effects with neutrino-induced charged-current neutral pion production
Date Issued
19 October 2020
Access level
open access
Resource Type
journal article
Author(s)
Coplowe D.
Altinok O.
Ahmad Dar Z.
Akbar F.
Andrade D.A.
Barr G.D.
Bashyal A.
Bercellie A.
Betancourt M.
Bodek A.
Bravar A.
Budd H.
Caceres G.
Cai T.
Carneiro M.F.
Da Motta H.
Dytman S.A.
Díaz G.A.
Felix J.
Fields L.
Filkins A.
Fine R.
Gallagher H.
Ghosh A.
Gran R.
Harris D.A.
Henry S.
Jena S.
Kleykamp J.
Kordosky M.
Last D.
Le T.
Lozano A.
Lu X.G.
Maher E.
Manly S.
Mann W.A.
Mauger C.
McFarland K.S.
Messerly B.
Miller J.
Morfín J.G.
Naples D.
Nelson J.K.
Nguyen C.
Norrick A.
Olivier A.
Paolone V.
Perdue G.N.
Ramírez M.A.
Ransome R.D.
Ray H.
Rodrigues P.A.
Ruterbories D.
Schellman H.
Sobczyk J.T.
Su H.
Sultana M.
Syrotenko V.S.
Valencia E.
Wark D.
Weber A.
Wospakrik M.
Wret C.
Yaeggy B.
Zazueta L.
Publisher(s)
American Physical Society
Abstract
We study neutrino-induced charged-current (CC) π0 production on carbon nuclei using events with fully imaged final-state proton-π0 systems. Novel use of final-state correlations based on transverse kinematic imbalance enables 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 MINERνA 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.
Volume
102
Issue
7
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-85095112176
Source
Physical Review D
ISSN of the container
24700010
Sponsor(s)
We thank Luis Alvarez Ruso for helpful comments on the paper. This document was prepared by members of the Collaboration using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. These resources included support for the construction project, and support for construction also was granted by the U.S. National Science Foundation under Grant No. PHY-0619727 and by the University of Rochester. Support for participating scientists was provided by NSF and DOE (USA); by CAPES and CNPq (Brazil); by CoNaCyT (Mexico); by Proyecto Basal FB 0821, CONICYT PIA ACT1413, Fondecyt 3170845 and 11130133 (Chile); by CONCYTEC (Consejo Nacional de Ciencia, Tecnologa e Innovacin Tecnolgica), DGI-PUCP (Direccin de Gestin de la Investigacin—Pontificia Universidad Catlica del Peru), and VRI-UNI (Vice-Rectorate for Research of National University of Engineering) (Peru); and by the Latin American Center for Physics (CLAF); NCN Opus Grant No. 2016/21/B/ST2/01092 (Poland); by Magdalen College Oxford and Science and Technology Facilities Council (UK). We thank the MINOS Collaboration for use of its near detector data. Finally, we thank the staff of Fermilab for support of the beam line, the detector, and computing infrastructure.
Sources of information:
Directorio de Producción Científica
Scopus