Determining the Energy Barrier for Decay out of Superdeformed Bands
Nuclear Theory
2010-07-02 v2
Abstract
An asymptotically exact quantum mechanical calculation of the matrix elements for tunneling through an asymmetric barrier is combined with the two-state statistical model for decay out of superdeformed bands to determine the energy barrier (as a function of spin) separating the superdeformed and normal-deformed wells for several nuclei in the 190 and 150 mass regions. The spin-dependence of the barrier leading to sudden decay out is shown to be consistent with the decrease of a centrifugal barrier with decreasing angular momentum. Values of the barrier frequency in the two mass regions are predicted.
Keywords
Cite
@article{arxiv.0809.1119,
title = {Determining the Energy Barrier for Decay out of Superdeformed Bands},
author = {B. R. Barrett and J. Bürki and D. M. Cardamone and C. A. Stafford and D. L. Stein},
journal= {arXiv preprint arXiv:0809.1119},
year = {2010}
}
Comments
v1: 4 pages, 1 figure, 1 table. v2: 5 pages, 1 figure, 1 table; minor corrections and clarifications