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Updated Search for Electron Antineutrino Appearance at MiniBooNE

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 نشر من قبل E. D. Zimmerman
 تاريخ النشر 2011
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 تأليف E. D. Zimmerman




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The MiniBooNE experiment at Fermilab has updated its search for u_mu-bar -> u_e-bar oscillations with data collected through May 2011. This represents a statistics increase of 52% over the result published in 2010. The data favor LSND-like oscillations over a background-only hypothesis at the 91.1% confidence level. While the new result remains equally consistent with LSND, the compatibility with the background-only hypothesis is improved. An excess of 38.6 +- 18.5 u_e-like events below 475 MeV is observed, consistent with the observation of such an excess in neutrino mode.

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