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

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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