Determining the energy barrier for decay out of superdeformed bands

Bruce R Barrett, J. Bürki, D. M. Cardamone, Charles A Stafford, D. L. Stein

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)110-113
Number of pages4
JournalPhysics Letters B
Volume688
Issue number1
DOIs
StatePublished - Apr 26 2010

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decay
energy
angular momentum
nuclei
matrices

Keywords

  • Quantum-mechanical path integrals
  • Superdeformed decay
  • Two-state model of SD decay

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Determining the energy barrier for decay out of superdeformed bands. / Barrett, Bruce R; Bürki, J.; Cardamone, D. M.; Stafford, Charles A; Stein, D. L.

In: Physics Letters B, Vol. 688, No. 1, 26.04.2010, p. 110-113.

Research output: Contribution to journalArticle

Barrett, Bruce R ; Bürki, J. ; Cardamone, D. M. ; Stafford, Charles A ; Stein, D. L. / Determining the energy barrier for decay out of superdeformed bands. In: Physics Letters B. 2010 ; Vol. 688, No. 1. pp. 110-113.
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