Candidate superdeformed band in 28Si

D. G. Jenkins*, C. J. Lister, M. P. Carpenter, P. Chowdury, N. J. Hammond, R. V. F. Janssens, T. L. Khoo, T. Lauritsen, D. Seweryniak, T. Davinson, P. J. Woods, A. Jokinen, H. Penttila, F. Haas, S. Courtin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Recent antisymmetrized molecular dynamics (AMD) calculations for 28Si suggest the presence of a superdeformed (SD) band with a dominant 24Mg+α clustering for its configuration, with firm predictions for its location and associated moment of inertia. This motivates a review of the experimental results reported in the literature with a particular focus on 24Mg(α,γ) studies, as well as on α-like heavy-ion transfer reactions such as 12C(20Ne,α)28Si. Combining this information for the first time leads to a set of candidate SD states whose properties point to their α-cluster structure and strong associated deformation. Analysis of data from Gammasphere allows the electromagnetic decay of these candidate states to be probed and reveals further supporting evidence for such a structure. This paper appraises this body of information and finds the evidence for an SD band is strong.
Original languageEnglish
Article number064308
Number of pages5
JournalPhysical Review C
Volume86
Issue number6
DOIs
Publication statusPublished - 10 Dec 2012

Keywords

  • MEV EXCITATION-ENERGY
  • NUCLEUS AR-36
  • STATES
  • MODEL

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