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  • PhysRevLett.107.181802

    Rights statement: © 2011 American Physical Society

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Improved search for muon-neutrino to electron-neutrino oscillations in MINOS

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  • MINOS Collaboration
Article number181802
<mark>Journal publication date</mark>27/10/2011
<mark>Journal</mark>Physical review letters
Issue number18
Number of pages6
Publication StatusPublished
<mark>Original language</mark>English


We report the results of a search for νe appearance in a νμ beam in the MINOS long-baseline neutrino experiment. With an improved analysis and an increased exposure of 8.2×1020 protons on the NuMI target at Fermilab, we find that 2sin⁡2(θ23)sin⁡2(2θ13)<0.12(0.20) at 90% confidence level for δ=0 and the normal (inverted) neutrino mass hierarchy, with a best-fit of 2sin⁡2(θ23)sin⁡2(2θ13)=0.041-0.031+0.047(0.079-0.053+0.071). The θ13=0 hypothesis is disfavored by the MINOS data at the 89% confidence level.

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© 2011 American Physical Society