362 articles – 2937 Notices  [english version]
HAL : in2p3-00750280, version 1

Fiche concise  Récupérer au format
The T2K Neutrino Flux Prediction
Abe K., Autiero D., Dumarchez J., Emery S., Galymov V. et al
Physical Review D 87 (2013) 012001 - http://hal.in2p3.fr/in2p3-00750280
Physique/Physique des Hautes Energies - Expérience
The T2K Neutrino Flux Prediction
K. Abe, D. Autiero1, J. Dumarchez2, S. Emery3, V. Galymov3, C. Giganti2, M. Gonin4, M. Macaire3, J. Marteau1, E. Mazzucato3, T. Mueller4, B. Popov2, B. Quilain4, G. Vasseur3, L. Zambelli2, M. Zito3
1 :  IPNL - Institut de Physique Nucléaire de Lyon
http://www.ipnl.in2p3.fr/
CNRS : UMR5822 – IN2P3 – Université Claude Bernard - Lyon I (UCBL)
France
2 :  LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
http://www-lpnhep.in2p3.fr
CNRS : UMR7585 – IN2P3 – Université Pierre et Marie Curie (UPMC) - Paris VI – Université Paris VII - Paris Diderot
Barre 12-22, 1er étage 4 Place Jussieu 75252 Paris Cedex 05
France
3 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
CEA : DSM/IRFU
France
4 :  LLR - Laboratoire Leprince-Ringuet
http://polywww.in2p3.fr/
CNRS : UMR7638 – IN2P3 – Polytechnique - X
Route de Saclay - 91128 Palaiseau Cedex
France
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 J-PARC 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 (SK) -- 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 re-weighted 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.
T2K

Articles dans des revues avec comité de lecture
2013
Physical Review D (Phys. Rev. D)
Publisher American Physical Society
ISSN 1550-7998 (eISSN : 1550-2368)
87
012001

36 pages, submitted to Physical Review D, see paper for full list of authors
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/1211.0469