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T2K neutrino flux prediction

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T2K Collaboration (Including: Barker, Gary John, Boyd, Steve B., Hadley, David R., Lister, Callum, Litchfield, Reuban P. and Scully, D. I.). (2013) T2K neutrino flux prediction. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 87 (Number 1). Article number 012001 . doi:10.1103/PhysRevD.87.012001 ISSN 1550-7998.

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Official URL: http://dx.doi.org/10.1103/PhysRevD.87.012001

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Abstract

The Tokai-to-Kamioka (T2K) experiment studies neutrino oscillations using an off-axis muon neutrino beam with a peak energy of about 0.6 GeV that originates at the Japan Proton Accelerator Research Complex accelerator facility. Interactions of the neutrinos are observed at near detectors placed at 280 m from the production target and at the far detector—Super-Kamiokande—located 295 km away. The flux prediction is an essential part of the successful prediction of neutrino interaction rates at the T2K detectors and is an important input to T2K neutrino oscillation and cross section measurements. A FLUKA and GEANT3-based simulation models the physical processes involved in the neutrino production, from the interaction of primary beam protons in the T2K target, to the decay of hadrons and muons that produce neutrinos. The simulation uses proton beam monitor measurements as inputs. The modeling of hadronic interactions is reweighted using thin target hadron production data, including recent charged pion and kaon measurements from the NA61/SHINE experiment. For the first T2K analyses the uncertainties on the flux prediction are evaluated to be below 15% near the flux peak. The uncertainty on the ratio of the flux predictions at the far and near detectors is less than 2% near the flux peak.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Muons, Neutrinos, Particle beams
Journal or Publication Title: Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher: American Physical Society
ISSN: 1550-7998
Official Date: 2 January 2013
Dates:
DateEvent
2 January 2013Published
Volume: Volume 87
Number: Number 1
Article Number: Article number 012001
DOI: 10.1103/PhysRevD.87.012001
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 25 December 2015
Date of first compliant Open Access: 25 December 2015
Funder: Japan. Monbushō, Natural Sciences and Engineering Research Council of Canada (NSERC), National Research Council Canada (NRCC), Canada Foundation for Innovation (CFI), France. Commissariat à l'énergie atomique (CEA), Centre national de la recherche scientifique (France) (CNRS), Institut national de physique nucléaire et de physique des particules (IN2P3), Deutsche Forschungsgemeinschaft (DFG), Istituto nazionale di fisica nucleare (INFN), Narodowe Centrum Nauki (NCN), Rossiĭskai︠a︡ akademii︠a︡ nauk [Russian Academy of Sciences] (RAN), Rossiĭskiĭ fond fundamentalʹnykh issledovaniĭ [Russian Foundation for Basic Research] (RFBR), Russia (Federation). Ministerstvo obrazovanii︠a︡ i nauki [Ministry of Education and Science], Korea (South). Kyoyuk Kwahak Kisulbu [Ministry of Education, Science and Technology] (MEST), National Research Foundation of Korea (NRF), Spain. Ministerio de Ciencia e Innovación (MICINN), Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF), Switzerland. Staatssekretariat für Ausbildung und Forschung (SER), Science and Technology Facilities Council (Great Britain) (STFC), National Science Foundation (U.S.) (NSF), United States. Department of Energy, Seventh Framework Programme (European Commission) (FP7), Nihon Gakujutsu Shinkōkai [Japan Society for the Promotion of Sciences] (JSPS), Royal Society (Great Britain), Alfred P. Sloan Foundation

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