1997/08/08 by C. Beck, Ch. Beck, Beck, C. +8
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Nuclear physics research studies #Particle physics theoretical and experimental studies #nucl-ex
paper · pdf · doi:10.48550/arxiv.nucl-ex/9708004
16 pages LaTeX, 9 Figures available upon request
arxiv created 1997/08/08 · openalex publication_date 1997/08/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A high-resolution study of fragment-fragment-γ triple coincident measurements of the symmetric-mass fission exit-channel from the 28Si+28Si reaction has been performed at the VIVITRON Tandem facility by using the EUROGAM Phase II γ-ray spectrometer. The bombarding energy Elab(28Si) = 111.6 MeV has been chosen to populate a well known quasi-molecular resonance in 56Ni. Evidence is presented for a selective population of states in 28Si fragments arising from the symmetric-fission of the 56Ni compound nucleus. In the resonant region the enhanced population of the Kπ = 31- band of the 28Si nucleus, indicative of an oblate deformed shape, appears to play a significant role in the collision processes. The resonant behavior in the elastic and inelatic 28Si+28Si exit-channels is found to be correlated to strong disalignment features of the di-nuclear oblate-oblate system with an equator-equator stable configuration.