Single neutral pion production via muon antineutrino charged-current interactions in plastic scintillator (CH) is studied using the MINERvA detector exposed to the NuMI low-energy, wideband antineutrino beam at Fermilab. Measurement of this process constrains models of neutral pion production in nuclei, which is important because the neutral-current analog is a background for ν-e appearance oscillation experiments. The differential cross sections for π0 momentum and production angle, for events with a single observed π0 and no charged pions, are presented and compared to model predictions. These results comprise the first measurement of the π0 kinematics for this process.
|Original language||English (US)|
|Number of pages||7|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Oct 7 2015|
Bibliographical noteFunding Information:
This work was supported by the Fermi National Accelerator Laboratory under U.S. Department of Energy contract No. DE-AC02-07CH11359 which included the MINERvA construction project. Construction support also was granted by the United States National Science Foundation under Award PHY-0619727 and by the University of Rochester . Support for participating scientists was provided by National Science Foundation and DOE (USA) by CAPES and CNPq (Brazil), by CONACYT (Mexico), by CONICYT (Chile), by CONCYTEC , DGI-PUCP and IDI/IGI-UNI (Peru), by Latin American Center for Physics (CLAF) and by RAS and the Russian Ministry of Education and Science (Russia). We thank the MINOS Collaboration for use of its near detector data. Finally, we thank the staff of Fermilab for support of the beamline and the detector.
© 2015 The Authors.
- Final state interaction
- Neutrino-nucleus scattering