x / 03 07 06 9 v 1 2 5 Ju l 2 00 3 Observation of Atmospheric Neutrino Oscillations in Soudan 2
نویسندگان
چکیده
The effects of oscillations of atmospheric ν µ are observed in the 5.90 fiducial kiloton-year exposure of the Soudan 2 detector. An unbinned maximum likelihood analysis of the neutrino L/E distribution has been carried out using the Feldman-Cousins prescription. The probability of the no oscillation hypothesis is 5.8 × 10 −4. The 90% confidence allowed region in the sin 2 2θ, ∆m 2 plane is presented.
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