New constraints on muon-neutrino to electron-neutrino transitions in MINOS
- Adamson, P
- Andreopoulos, C
- Auty, D J
- Ayres, D. S.
- Backhouse, C
- Barr, G
- Bernstein, R.H
- Betancourt, M
- Bhattarai, P
- Devenish, N E
- Falk, E
- Harris, P.G.
- Hartnell, J
- Lefeuvre, G
- et al,
- The MINOS Collaboration
Publication date
September 2010
DOI Publisher
American Physical Society (APS) Language
EnglishAbstract
This paper reports results from a search for e transitions by the MINOS experiment based on a 71020 protons-on-target exposure. Our observation of 54 candidate e events in the far detector with a background of 49.17.0(stat)2.7(syst) events predicted by the measurements in the near detector requires 2sin2(213)sin223<0.12(0.20) at the 90% C.L. for the normal (inverted) mass hierarchy at CP=0. The experiment sets the tightest limits to date on the value of 13 for nearly all values of CP for the normal neutrino mass hierarchy and maximal sin2(223)
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