Sloan Foundation National Science Foundation the Queens Breakthrough Fund Department of Energy National Nuclear Security Administration through the Nuclear Science and Security Consortium (United States) Science and Technology Facilities Council (formerly Particle Physics and Astronomy Research Council) (United Kingdom) and Funda 2019 authors. Note = 'Funding Information: This research was supported by Natural Sciences and Engineering Research Council Industry Canada National Research Council Northern Ontario Heritage Fund Atomic Energy of Canada, Ltd. Results show good overall agreement between data and Monte Carlo for both phases, with some small tension with a statistical significance below 2σ for some intermediate energies.', This study is also performed by classifying the complete sample into two pairs of event categories: charged current quasielastic and non charged current quasielastic, and νμ and νe. The neutron production is measured as a function of the visible energy of the neutrino interaction and, for charged current quasielastic interaction candidates, also as a function of the neutrino energy. Neutrons produced in atmospheric neutrino interactions were identified with an efficiency of 15.3% and 44.3%, for Phases I and II respectively. We analyzed 837 days of exposure corresponding to Phase I, using pure heavy water, and Phase II, using a mixture of Cl in heavy water. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury Neutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulation using genie and a minimally modified version of geant4. Results show good overall agreement between data and Monte Carlo for both phases, with some small tension with a statistical significance below 2σ for some intermediate energies.Ībstract = 'Neutron production in giga electron volt-scale neutrino interactions is a poorly studied process.

Neutron production in giga electron volt-scale neutrino interactions is a poorly studied process.

Sudbury neutrino observatory