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Evidence for alpha-particle chain configurations in {sup 24}Mg [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
8 pages : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Many theoretical models have been employed to described the structure of the nucleus ²⁴Mg. Among these are the Cranked Shell model (CSM), the Cranked Cluster Model (CCM), and calculations have also been performed using the Hartree-Fock formalism. One very striking prediction of these calculations is that in this nucleus there exist very unusual configurations, with structures reminiscent of linear chains of alpha particles. In the CSM, for instance, such a configuration is identified with a pronounced minimum in the potential energy energy at very large prolate deformation. In the CCM, several very different alpha-particle duster configurations are identified, many having rather large deformations. These cluster configurations can be associated with the different potential-energy minima obtained in the CSM results. In the case of the CCM, a 6α chain-like configuration is predicted to occur at excitation energies between 40 and 50 MeV, with predicted rotational spacing given by ℏ²/2I=22 keV. At this excitation energy, such a chain configuration would lie well above the threshold for the decay of ²⁴Mg into 6 alpha particles, and its identification poses a difficult experimental challenge. This report discusses this challenge.
Report Numbers
E 1.99:anl/cp--74960
E 1.99: conf-920708--1
conf-920708--1
anl/cp--74960
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
09/01/1992.
"anl/cp--74960"
" conf-920708--1"
"DE92018790"
2. international nuclear physics conference,Wiesbaden (Germany),26 Jul - 1 Aug 1992.
Henderson, D.J.; Back, B.B.; Betts, R.R.; Wuosmaa, A.H.; Gehring, J.; Bearden, I.G.; Wilt, P.; Happ, Th.; Ferre, M.; Glagola, P.G.
Funding Information
W-31109-ENG-38
View MARC record | catkey: 14758384