Beta-alpha angular correlations in mass 8

R. D. McKeown, G. T. Garvey, and C. A. Gagliardi
Phys. Rev. C 22, 738 – Published 1 August 1980; Erratum Phys. Rev. C 26, 2336 (1982)
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Abstract

A detailed study of the βα angular correlations in the Li8(β) and B8(β+) decays was performed. Since these decays proceed to the 2α continuum, detection of both alpha particles enabled determination of various correlations as functions of the final-state energy. The experimental results show a small (≈ 15% of weak magnetism) deviation from the conserved vector current prediction which is dependent on the final-state energy. An effect of this size cannot be interpreted as convincing evidence for the presence of second-class currents or a breakdown of conserved vector current theory. However, the inclusion of the vector second-forbidden terms in the nuclear weak current as predicted by the conserved vector current theory is crucial to obtain even approximate agreement with the experimental results.

RADIOACTIVITY Li8, B8; measured βα angular correlation, final-state energy dependence. Model independent test of CVC and second-class currents.

  • Received 12 February 1980

DOI:https://doi.org/10.1103/PhysRevC.22.738

©1980 American Physical Society

Erratum

Erratum: Beta-alpha angular correlations in mass 8

R. D. McKeown, G. T. Garvey, and C. A. Gagliardi
Phys. Rev. C 26, 2336 (1982)

Authors & Affiliations

R. D. McKeown, G. T. Garvey, and C. A. Gagliardi

  • Argonne National Laboratory, Argonne, Illinois 60439

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Issue

Vol. 22, Iss. 2 — August 1980

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