Evidence for an oscillatory signature in atmospheric neutrino oscillation

Details Evidence for an oscillatory signature in atmospheric neutrino oscillation Evidence for an oscillatory signature in atmospheric neutrino oscillation

2004-04-27

arxiv.org/abs/hep-ex/0404034v1

Phys.Rev.Lett.93:101801,2004

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages, 5 figures, submitted to PRL

Scientific paper

10.1103/PhysRevLett.93.101801

Muon neutrino disappearance probability as a function of neutrino flight length L over neutrino energy E was studied. A dip in the L/E distribution was observed in the data, as predicted from the sinusoidal flavor transition probability of neutrino oscillation. The observed L/E distribution constrained nu_mu <-> nu_tau neutrino oscillation parameters; 1.9x10^-3 < Delta m^2 < 3.0x10^-3 eV^2 and \sin^2(2theta) > 0.90 at 90% confidence level.

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