Universality of Decay out of Superdeformed Bands in the 190 Mass Region

Details Universality of Decay out of Superdeformed Bands in the 190 Mass Region Universality of Decay out of Superdeformed Bands in the 190 Mass Region

2007-02-23

arxiv.org/abs/nucl-th/0702072v2

Phys.Lett.B661:233-238,2008

Physics

Nuclear Physics

Nuclear Theory

7 pages, 3 figures. v2: some minor clarifications, minor correction to Fig. 2

Scientific paper

10.1016/j.physletb.2008.01.064

Superdeformed nuclei in the 190 mass region exhibit a striking universality in their decay-out profiles. We show that this universality can be explained in the two-level model of superdeformed decay as related to a strong separation of energy scales: a higher scale related to the nuclear interactions, and a lower scale caused by electromagnetic decay. Furthermore, we present the results of the two-level model for all decays for which sufficient data are known, including statistical extraction of the matrix element for tunneling through the potential barrier.

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