## Abstract

A new expression for the branching ratio for the decay via the [Formula presented] process in the normal-deformed band of superdeformed nuclei is given within a simple two-level model. Using this expression, the spreading or tunneling width [Formula presented] for superdeformed decay can be expressed entirely in terms of experimentally known quantities. We show how to determine the tunneling matrix element [Formula presented] from the measured value of [Formula presented] and a statistical model of the energy levels. The accuracy of the two-level approximation is verified by considering the effects of the other normal-deformed states.

Original language | English (US) |
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Journal | Physical review letters |

Volume | 91 |

Issue number | 10 |

DOIs | |

State | Published - Sep 3 2003 |

## ASJC Scopus subject areas

- Physics and Astronomy(all)