TPC spectrometer for measuring the e/sup +/ spectrum in. mu. decay

Conference · Sat Jan 01 00:00:00 EST 1983

OSTI ID:5901007

Kinnison, W W

The Time Projection Chamber (TPC) being used at the Los Alamos Meson Physics Facility (LAMPF) for a high-statistics normal muon-decay experiment is described. It is shown how the experiment will improve upon the limits of the weak-interaction coupling constants by a factor of 5 through the measurement of the positron momentum and direction of emission with respect to the muon-polarization vector for 10/sup 8/ decays of stopped, polarized, positive muons. The TPC apparatus is described, and it is shown that even though more work is to be done to improve the detector acceptance and individual coordinate resolutions, for certain track topologies, the TPC already has a momentum resolution of 0.7% (sigma).

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5901007
• Report Number(s): LA-UR-83-2485; CONF-830660-3; ON: DE83017296
• Resource Relation: Conference: 23. annual international conference of Canadian Nuclear Association, Montreal, Canada, 12 Jun 1983; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
MUONS PLUS
WEAK PARTICLE DECAY
PROJECTION SPARK CHAMBERS
PERFORMANCE
DATA ACQUISITION SYSTEMS
ENERGY SPECTRA
POSITRON DETECTION
POSITRONS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
CHARGED PARTICLE DETECTION
DECAY
DETECTION
ELEMENTARY PARTICLES
FERMIONS
GAS TRACK DETECTORS
LEPTONS
MEASURING INSTRUMENTS
MUONS
PARTICLE DECAY
RADIATION DETECTION
RADIATION DETECTORS
SPARK CHAMBERS
SPECTRA
440104* - Radiation Instrumentation- High Energy Physics Instrumentation
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources