Fusion of the positiveQ-value systemS36+Ca48well below the Coulomb barrier
Physical Review C2008Vol. 78(4)
Citations Over TimeTop 10% of 2008 papers
A. M. Stefanini, G. Montagnoli, Riccardo Silvestri, S. Beghini, L. Corradi, S. Courtin, E. Fioretto, B. Guiot, F. Haas, D. Lebhertz, N. Mărginean, Paolo Mason, F. Scarlassara, R. N. Sagaidak, S. Szilner
Abstract
The fusion excitation function of $^{36}\mathrm{S}+^{48}\mathrm{Ca}$ has been measured from well above the barrier down to very small cross sections at sub-barrier energies. A steady decrease of the fusion cross sections is observed below the barrier with no pronounced change of slope. The logarithmic derivative saturates and does not reach the value expected for a constant astrophysical S-factor. The S-factor does not show any maximum in the measured energy range. Coupled-channels calculations using a Woods-Saxon potential have been performed.
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