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The beta-ray angular correlations for the spin alignments of 8Li and 8B havebeen observed in order to test the conserved vector current (CVC) hypothesis.The alignment correlation terms were combined with the known beta-alpha-angularcorrelation terms to determine all the matrix elements contributing to thecorrelation terms. The weak magnetism term, 7.5\pm0.2, deduced from thebeta-ray correlation terms was consistent with the CVC prediction 7.3\pm0.2,deduced from the analog-gamma-decay measurement based on the CVC hypothesis.However, there was no consistent CVC prediction for the second-forbidden termassociated with the weak vector current. The experimental value for thesecond-forbidden term was 1.0 \pm 0.3, while the CVC prediction was 0.1 \pm 0.4or 2.1 \pm 0.5.

Test of the Conserved Vector Current Hypothesis by beta-ray Angular Distribution Measurement in the Mass-8 System