Highly deformed 40Ca configurations in 28Si + 12C
M. Rousseau, C. Beck, C. Bhattacharya, V. Rauch, O. Dorvaux, A. K. Dummer, K. Eddahbi, C. Enaux, R. M. Freeman, F. Haas, A. Hachem, D. Mahboub, E. Martin, R. Nouicer, P. Papka, S. J. Sanders, O. Stezowski, A. Szanto de Toledo, S. Szilner
Abstract
The possible occurrence of highly deformed configurations in the 40Ca di-nuclear system formed in the 28Si + 12C reaction is investigated by analyzing the spectra of emitted light charged particles. Both inclusive and exclusive measurements of the heavy fragments (A ≥ 10) and their associated light charged particles (protons and α particles) have been made at the IReS Strasbourg VIVITRON Tandem facility at bombarding energies of Elab (28Si) = 112 MeV and 180 MeV by using the ICARE charged particle multidetector array. The energy spectra, velocity distributions, and both in-plane and out-of-plane angular correlations of light charged particles are compared to statistical-model calculations using a consistent set of parameters with spin-dependent level densities. The analysis suggests the onset of large nuclear deformation in 40Ca at high spin.
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