Tunneling from super- to normal-deformed minima in nuclei.

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An excited minimum, or false vacuum, gives rise to a highly elongated superdeformed (SD) nucleus. A brief review of superdeformation is given, with emphasis on the tunneling from the false to the true vacuum, which occurs in the feeding and decay of SD bands. During the feeding process the tunneling is between hot states, while in the decay it is from a cold to a hot state. The {gamma} spectra connecting SD and normal-deformed (ND) states provide information on several physics issues: the decay mechanism; the spin/parity quantum numbers, energies and microscopic structures of SD bands; the origin of identical ... continued below

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48 p.

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Khoo, T. L. January 8, 1998.

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Description

An excited minimum, or false vacuum, gives rise to a highly elongated superdeformed (SD) nucleus. A brief review of superdeformation is given, with emphasis on the tunneling from the false to the true vacuum, which occurs in the feeding and decay of SD bands. During the feeding process the tunneling is between hot states, while in the decay it is from a cold to a hot state. The {gamma} spectra connecting SD and normal-deformed (ND) states provide information on several physics issues: the decay mechanism; the spin/parity quantum numbers, energies and microscopic structures of SD bands; the origin of identical SD bands; the quenching of pairing with excitation energy; and the chaoticity of excited ND states at 2.5-5 MeV. Other examples of tunneling in nuclei, which are briefly described, include the possible role of tunneling in {Delta}I = 4 bifurcation in SD bands, sub-barrier fusion and proton emitters.

Physical Description

48 p.

Notes

INIS; OSTI as DE00010550

Medium: P; Size: 48 pages

Source

  • Tunneling in Complex Systems, Seattle, WA (US), 04/24/1997--05/02/1997

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  • Report No.: ANL/PHY/CP-95250
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10550
  • Archival Resource Key: ark:/67531/metadc625309

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  • January 8, 1998

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 12, 2017, 7:08 p.m.

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Khoo, T. L. Tunneling from super- to normal-deformed minima in nuclei., article, January 8, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc625309/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.