LSND and MiniBooNE within (3+1) plus NSI

Akhmedov, Evgeny; Schwetz, Thomas

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LSND and MiniBooNE within (3+1) plus NSI

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Akhmedov, Evgeny
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Schwetz, Thomas
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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http://link.aip.org/link/doi/10.1063/1.3644278
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Akhmedov, E., & Schwetz, T. (2011). LSND and MiniBooNE within (3+1) plus NSI. American Institute of Physics Conference Proceedings, 1382, 94-96.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-3CB4-2

Abstract

The recently observed event excess in MiniBooNE anti-neutrino data is in agreement with the LSND evidence for electron anti-neutrino appearance. We propose an explanation of these data in terms of a (3+1) scheme with a sterile neutrino including non-standard neutrino interactions (NSI) at neutrino production and detection. The interference between oscillations and NSI provides a source for CP violation which we use to reconcile different results from neutrino and anti-neutrino data. Our best fit results imply NSI at the level of a few percent relative to the standard weak interaction, in agreement with current bounds. We compare the quality of the NSI fit to the one obtained within the (3+1) and (3+2) pure oscillation frameworks.