{beta}-delayed neutron emission from {sup 12,14}Be

The existence of {beta}-delayed particle emission allows one to study the {beta}-strength distribution, and thereby the ground-state structure, of exotic drip-line nuclei. A time-correlation method has been applied to recent data on the heaviest Be-isotopes to determine their neutron branches. Improved results were obtained for {sup 12}Be and new results were found for the very short-lived neutron-emitter, {sup 14}Be.