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Data from a new study of the decay π→eν are used to place bounds on Majoron-neutrino couplings and to obtain inclusive branching-ratio limits for π→eνM, where M is a new particle with a mass in the range 0 to 125 MeV. A limit for the process π+→e+ννν¯ is also obtained.
|Glasgow Author(s):||Britton, Prof David|
|Authors:||Picciotto, C., Ahmad, S., Britton, D., Bryman, D., Clifford, E., Kitching, P., Kuno, Y., Macdonald, J., Numao, T., Olin, A., Poutissou, J.-M., Summhammer, 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|