Two-dimensional alpha cluster structures in 28Si

✍ Scribed by G.J. Gyapong; N. Curtis; W.N. Catford; S.M. Singer; W.D.M. Rae; M. Freer; S.J. Hall; G.R. Kelly; R.A. Le Marechal; R.P. Ward; S.P.G. Chappell; S.P. Fox; C.D. Jones; P.R. Lee; D.L. Watson

• Book ID: 104336383
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 853 KB
• Volume: 620
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(97)00152-8

✦ Synopsis

A study has been made of the 12C( 160,12C12C)ot ' reaction between the centre of mass energies of 28.3 to 36.8 MeV. A number of resonances in 28Si have been observed for final channels leading to the unbound 10.35, 1 !.09 and 14.82 MeV states in 160. At two energies associated with previously observed resonances, the angular correlations of the exit channel particles have been analysed to measure the dominant angular momentum of the 28Si compound nucleus. Additional data were acquired at two off-resonance energies for comparison. Using an essentially model independent analysis, the values obtained were all in the region of 19-21 h, and are comparable with the grazing angular momentum in the entrance channel. The results are relevant to recent theoretical predictions of planar a-cluster structures in ZSsi and are discussed in the context of the model predictions. (~) 1997 Elsevier Science B.V.