Abstract
We report on an extensive on-line nuclear orientation study of the angular distribution of particles emitted in the favored decay of neutron deficient At and Rn nuclei near the shell closure. Surprisingly large anisotropies were observed, showing pronounced changes from one isotope to another. Comparing these data with several theoretical models shows that anisotropic emission in favored decays from near-spherical nuclei can well be explained within the shell model, implying that it is mainly determined by the structure of the decaying nucleus.
- Received 12 March 1996
DOI:https://doi.org/10.1103/PhysRevLett.77.4720
©1996 American Physical Society