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30th International Cosmic Ray Conference

3-11 July 2007
Merida, Mexico
Mexico/General timezone
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Contribution Oral

Merida, Mexico - Kabah (Holiday Inn)
HE.2.2
HE 2.2

L/E analysis and the limit on decoherence from SK

Speakers

  • Dr. Itaru HIGUCHI

Primary authors

  • Dr. Itaru HIGUCHI (Research Center for Cosmic Neutrinos,Isnstitute for Cosmic Ray Research,University of Tokyo)

Files

Abstract content

Muon neutrino disappearance probability as a function of neutrino flight lenght L over neutrino energy E was studied. A dip in the L/E distribution was bserved in the data from Super-Kamiokande-I+II, as perdicted from the sinusoidal flavor transition probability of neutrino oscillation. The observed L/E distribution onstrained nu_mu <-> nu_tau neutrino oscillation parameters. We also present preliminary results on the constraint on the neutrino decoherence parameter.

If this papers is presented for a collaboration, please specify the collaboration

The Super-Kamiokande Collaboration

Reference

Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 5 (HE part 2), pages 1311-1314