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Search for right-handed currents in the decay K-italic/sup +/. --> mu. /sup +/. nu

Journal Article · · Phys. Rev. D; (United States)
; ; ; ; ; ; ; ;
The longitudinal polarization of the muon emitted in the decay K-italic/sup +/..--> mu../sup +/..nu.. was measured to search for right-handed weak currents in a strangeness-changing process. The 236-MeV/c-italic muons from the decay of stopped K-italic/sup +/ were identified and were collected by a magnetic spectrometer. The muons were then slowed down in a carbon degrader and were brought to rest in an aluminum target. The muon spins were precessed by a 220-G transverse field, and a muon-spin-rotation technique was employed to measure the muon-spin polarization. The polarization was determined to be -0.970 +- 0.047, which is consistent with the V-italic-A-italic hypothesis.
Research Organization:
Department of Physics and Meson Science Laboratory, Faculty of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
OSTI ID:
5647525
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 34:1; ISSN PRVDA
Country of Publication:
United States
Language:
English

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Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ALUMINIUM
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
BOSONS
CYCLIC ACCELERATORS
CYCLOTRONS
DECAY
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
INTERACTIONS
ISOCHRONOUS CYCLOTRONS
KAONS
KAONS PLUS
LEPTONIC DECAY
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESONS
METALS
MUONS
MUONS PLUS
NEUTRINOS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
POLARIZED PRODUCTS
PSEUDOSCALAR MESONS
SPIN
STANDARD MODEL
STRANGE MESONS
STRANGE PARTICLES
STRANGENESS
SYMMETRY BREAKING
TRIUMF CYCLOTRON
UNIFIED GAUGE MODELS
V-A THEORY
WEAK INTERACTIONS
WEAK PARTICLE DECAY