Fusion of 28Si + 28, 30Si : Different trends at sub-barrier energies (CROSBI ID 210202)
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Podaci o odgovornosti
Montagnoli, G. ; Stefanini, A.M. ; Esbensen, H. ; Jiang, C.L.: Corradi, L. ; Courtin, S. ; Fioretto, E. ; Grebosz, J. ; Haas, F. ; Jia, H. M. ; Mazzocco, M. ; Michelagnoli, C. ; Mijatović, Tea ; Montanari, D. ; Parascandolo, C. ; Scarlassara, F. ; Strano, E. ; Szilner, Suzana ; Torresi, D.
engleski
Fusion of 28Si + 28, 30Si : Different trends at sub-barrier energies
The fusion excitation function of the system 28Si + 28Si at energies near and below the Coulomb barrier is known only down to ~15 mb. This precludes any information on both coupling effects on sub-barrier cross sections and the possible appearance of hindrance. The sub-barrier cross sections for 28Si + 28Si are overestimated by coupled-channels calculations based on a standard Woods-Saxon potential, except for the lowest energies. Calculations using the M3Y+repulsion potential are adjusted to fit the 28Si + 28Si and the existing 30Si + 30Si data. An additional weak imaginary potential is required to fit the low-energy trend of 28Si + 28Si.
fusion excitation function; coupling effects; fusion hindrance
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