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Evidence of massive neutrinos was sought in the π+→e+ν decay spectrum with the background from the π→μ→e decay chain highly suppressed. Upper limits (90% C.L.) were set on the neutrino mixing parameter |Uei|2<10-7 in the mass region 50<mν<130 MeV/c2.
|Glasgow Author(s):||Britton, Prof David|
|Authors:||Britton, D., Ahmad, S., Bryman, D., Burnham, R., Clifford, E., Kitching, P., Kuno, Y., Macdonald, J., Numao, T., Olin, A., Poutissou, J., and Dixit, M.|
|College/School:||College of Science and Engineering > School of Physics and Astronomy|
|Journal Name:||Physical Review D|
|Publisher:||American Physical Society|