Ratio vertical-barg/sub A//g/sub V/ vertical-bar derived from the proton spectrum in free-neutron decay

Journal Article · Fri Dec 01 00:00:00 EST 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.18.3970· OSTI ID:6506925

Stratowa, C; Dobrozemsky, R; Weinzierl, P

The electron-neutrino angular-correlation coefficient was determined by measuring the shape of the proton recoil spectrum from free-neutron decay. The protons leaving a highly evacuated tangential reactor beam tube were analyzed by a spherical condenser spectrometer and counted in an ion-electron converter detector. The design of the apparatus, the possible disturbing influences, and the measures to reduce their effects are discussed. The remaining corrections were either calculated or determined by auxiliary measurements and applied to the spectral shape. The sources of systematic errors are considered and included in the final results. We obtained a = 0.1017 +- 0.0051 giving vertical-barg/sub A//g/sub V/ vertical-bar = 1.259 +- -0.017.

• Research Organization: Physics Institute, Research Center Seibersdorf, Osterreichische Studiengesellschaft fuer Atomenergie m.b.H., Lenaugasse 10, A-1082 Vienna, Austria
• OSTI ID: 6506925
• Journal Information: Phys. Rev., D; (United States), Vol. 18:11
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
NEUTRONS
BETA DECAY
ANGULAR CORRELATION
COUPLING CONSTANTS
ELECTRONS
ENERGY SPECTRA
NEUTRINOS
P INVARIANCE
PLASTIC SCINTILLATION DETECTORS
PROTON SPECTRA
BARYONS
CORRELATIONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INVARIANCE PRINCIPLES
LEPTONS
MASSLESS PARTICLES
MEASURING INSTRUMENTS
NUCLEONS
RADIATION DETECTORS
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
SPECTRA
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties