Testing Alternative Oscillation Scenarios with Atmospheric Neutrinos Using AMANDA-II Data from 2000 to 2003

Ahrens, J.; IceCube Collaboration; Kelley, J. L.

Contribution to a conference proceedings

Testing Alternative Oscillation Scenarios with Atmospheric Neutrinos Using AMANDA-II Data from 2000 to 2003

Ahrens, J. (Corresponding author) ; Kelley, J. L. (Corresponding author) ; IceCube Collaboration (Collaboration author) ; DESY

2007
Universidad Nacional Autonoma de Mexico Ciudad de Mexico

30th International Cosmic Ray Conference, ICRC2007, Merida, Mexico, 3 Jul 2007 - 11 Jul 2007 Ciudad de Mexico : Universidad Nacional Autonoma de Mexico 55-58 (2007) [10.1142/9789812779519_0035]

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Please use a persistent id in citations: doi:10.1142/9789812779519_0035

Abstract: The AMANDA-II neutrino telescope detects upward-going atmospheric muon neutrinos penetratingthe Earth from the Northern Hemisphere via the Cherenkov light of neutrino-induced muons,allowing the reconstruction of the original neutrino direction. Due to the high energy threshold of about 50 GeV, the declination spectrum is minimally affected by standard neutrino oscillations; however, alternative oscillation models predicting subdominant effects can be tested and constrained. Of particular interest are models that allow one to test Lorentz invariance and the equivalence principle. Using the AMANDA-II data from the years 2000 to 2003, a sample of 3401 candidate neutrino-induced events was selected. No indication for alternative oscillation effects was found. For maximal mixing angles, an upper limit is set on both the Lorentz violation parameter δc/c and the equivalence principle violation parameter 2|φ|δγ of 5.3 × 10−27 at the 90% confidence level.

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