Published July 4, 1991 | Version v1
Journal article Metadata-only

New measurements of the electron-neutron spin asymmetry in neutron beta-decay

Creators

  • 1. Leningrad Nuclear Physics Inst., Gatchina (USSR)
  • 2. Kurchatov Atomic Energy Inst., Moscow (USSR)

Description

The A-coefficient, which characterizes the angular correlation between the electron escape and the decaying neutron spin directions, is measured in an intense polarized neutron beam from the new vertical channel of the LNPI reactor. The result is A=-0.1131±0.0014 (A0=-0.1116±0.0014), implying λ=gA/gV=-1.2544±0.0036 for the ratio of the weak coupling constants. (orig.)

Additional details

Publishing Information

Journal Title
Physics Letters, (Section) B
Journal Volume
263
Journal Issue
1
Series
Phys. Lett., B.
Journal Page Range
33-38
ISSN
0370-2693
CODEN
PYLBA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
23020237
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANGULAR DISTRIBUTION; AXIAL-VECTOR CURRENTS; CHARGED-CURRENT INTERACTIONS; COUPLING CONSTANTS; EXPERIMENTAL DATA; NEUTRONS; SEMILEPTONIC DECAY; SPIN ORIENTATION; VECTOR CURRENTS; WEAK CHARGED CURRENTS
Descriptors DEC
ALGEBRAIC CURRENTS; BARYONS; CHARGED CURRENTS; CURRENTS; DATA; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INFORMATION; INTERACTIONS; NUCLEONS; NUMERICAL DATA; ORIENTATION; PARTICLE DECAY; PARTICLE INTERACTIONS; WEAK PARTICLE DECAY