Abstract
The proton emission from ground-state spherical nuclei is investigated exactly through the numerical solution of the time-dependent Schrödinger equation for initial single-proton quasistationary states. Contrary to common belief, it is shown that such calculations can be performed for any proton half-life ranging from the longest proton lifetime observed at present. The important and careful choice of the initial metastable state is clarified. Applied to the calculation of the decay width of several ground-state spherical emitters, this method gives comparable results with the distorted wave-Born approximation and therefore justifies its use.
- Received 14 December 1999
DOI:https://doi.org/10.1103/PhysRevC.62.014609
©2000 American Physical Society