Event excess in the MiniBooNE search for ν̅ μ→ν̅ e oscillations

Aguilar-Arevalo, A.A. and Nowak, Jaroslaw (2010) Event excess in the MiniBooNE search for ν̅ μ→ν̅ e oscillations. Physical review letters, 105 (18). ISSN 1079-7114

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Abstract

The MiniBooNE experiment at Fermilab reports results from a search for ν̅ μ→ν̅ e oscillations, using a data sample corresponding to 5.66×1020 protons on target. An excess of 20.9±14.0 events is observed in the energy range 475<EνQE<1250  MeV, which, when constrained by the observed ν̅ μ events, has a probability for consistency with the background-only hypothesis of 0.5%. On the other hand, fitting for ν̅ μ→ν̅ e oscillations, the best-fit point has a χ2 probability of 8.7%. The data are consistent with ν̅ μ→ν̅ e oscillations in the 0.1 to 1.0  eV2 Δm2 range and with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

Item Type: Journal Article
Journal or Publication Title: Physical review letters
Additional Information: © 2010 The American Physical Society
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 66785
Deposited By: ep_importer_pure
Deposited On: 26 Sep 2013 13:08
Refereed?: Yes
Published?: Published
Last Modified: 20 Feb 2020 01:49
URI: https://eprints.lancs.ac.uk/id/eprint/66785

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