Search for massive neutrinos in the decay. pi -->. e. nu

Journal Article · Mon May 16 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.50.1546· OSTI ID:5982093

Bryman, D A; Dubois, R; Numao, T; Olaniyi, B; Olin, A; Dixit, M S; Poutissou, J; Macdonald, J A

The positron spectrum from the decay ..pi../sup +/..-->..e/sup +/..nu../sub e/ has been examined for evidence of peaks arising from an admixture in the ..nu../sub e/ weak eigenstate of massive neutrinos. Limits on the intensity of such peaks, together with the measured ..pi -->..e..nu.. branching ratio, have been used to derive constraints on the neutrino mixing parameters over the range 4 MeV

• Research Organization: Tri-University Meson Facility and University of Victoria, Vancouver, British Columbia V6T2A3, Canada
• OSTI ID: 5982093
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:20; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CYCLIC ACCELERATORS
CYCLOTRONS
DECAY
EIGENSTATES
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INTERACTIONS
ISOCHRONOUS CYCLOTRONS
LEPTONIC DECAY
LEPTONS
MASSLESS PARTICLES
MESONS
NEUTRINOS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PIONS
PIONS PLUS
POSITRONS
PSEUDOSCALAR MESONS
TRIUMF CYCLOTRON
WEAK INTERACTIONS
WEAK PARTICLE DECAY