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Energy reconstruction effects in neutrino oscillation experiments and implications for the analysis
Martini M., Ericson M., Chanfray G.
Physical Review D 87 (2013) 013009 - http://hal.in2p3.fr/in2p3-00749643
Physique/Physique des Hautes Energies - Expérience
Physique/Physique des Hautes Energies - Phénoménologie
Physique/Physique Nucléaire Théorique
Energy reconstruction effects in neutrino oscillation experiments and implications for the analysis
M. Martini, M. Ericson1, 2, G. Chanfray1
1 :  IPNL - Institut de Physique Nucléaire de Lyon
http://www.ipnl.in2p3.fr/
CNRS : UMR5822 – IN2P3 – Université Claude Bernard - Lyon I
France
2 :  CERN - European Organization for Nuclear Research
http://www.cern.ch
CERN
Suisse
Theorie
Data on neutrino oscillation often involve reconstructed neutrino energies while the analysis implies the real neutrino energy. The corrections corresponding to the transformation from real to reconstructed energy are discussed in the case of Cherenkov detectors where multinucleon events appear as quasielastic ones. These corrections show up as a tendency for the events to escape the region of high flux, with a clear preference for the low energy side. This is an effect of the multinucleon component of the quasielastic cross section. We have applied our corrections to the T2K and MiniBooNE data for electron appearance or $\nu_\mu$ disappearance data. We show that the inclusion of this correction in the analysis is expected to lead to an increase of the best fit oscillation mass parameters, particularly pronounced for the MiniBooNE neutrino data. This inclusion in the analysis of the MiniBooNE neutrino data should improve the compatibility with the existing constraints.

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
013009

Lien vers le texte intégral : 
http://fr.arXiv.org/abs/1211.1523