Constraints on Massive Neutrinos in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>π</mi><mo>→</mo><mi>e</mi><mi>ν</mi></math></span> Decay

G. Azuelos; D. I. Britton; D. A. Bryman; E. T. H. Clifford; P. Kitching; J. A. Macdonald; T. Numao; B. Olaniyi; A. Olin; J. -M. Poutissou; P. Schlatter; M. S. Dixit

doi:10.1103/PhysRevLett.56.2241

Constraints on Massive Neutrinos in $π \to e ν$ Decay

G. Azuelos, D. I. Britton, D. A. Bryman, E. T. H. Clifford, P. Kitching, J. A. Macdonald, T. Numao, B. Olaniyi, A. Olin, J. -M. Poutissou, P. Schlatter, and M. S. Dixit

Phys. Rev. Lett. 56, 2241 – Published 26 May 1986

Abstract

A search has been carried out for the production of neutrinos in the mass range 60 to 130 MeV coupling to the electron in the decay $π^{+} \to e^{+} ν$ . The dominant background from the $π - μ - e$ decay chain has been suppressed by use of a new technique leading to more than an order of magnitude greater sensitivity than achieved previously.

Received 28 February 1986

DOI:https://doi.org/10.1103/PhysRevLett.56.2241

Authors & Affiliations

G. Azuelos, D. I. Britton^*, D. A. Bryman^*, E. T. H. Clifford^*, P. Kitching^†, J. A. Macdonald, T. Numao, B. Olaniyi^‡, A. Olin^*, J. -M. Poutissou^§, and P. Schlatter^*

TRIUMF, University of British Columbia, Vancouver, British Columbia V6T 2A3, Canada

M. S. Dixit

National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada

^*Also at the University of Victoria, Victoria, British Columbia V8W 2Y2, Canada.
^†Also at the University of Alberta, Edmonton, Alberta T6G 2J1, Canada.
^‡On leave from the University of Ife, Ile-Ife, Nigeria.
^§Also at the University of British Columbia, Vancouver, British Columbia V6T 1W5, Canada.