Fusion Hindrance and Quadrupole Collectivity in Collisions of A≃50 Nuclei: The Case of 48Ti + 58Fe (CROSBI ID 621716)
Prilog sa skupa u zborniku | ostalo
Podaci o odgovornosti
Stefanini, A.M. ; Montagnoli, G. ; Corradi, L. ; Courtin, S. ; Bourgin, D. ; Fioretto, E. ; Goasduff, A. ; Grebosz, J. ; Haas, F. ; Mazzocco, M. ; Mijatović, Tea ; Montanari, D. ; Parascandolo, C. ; Scarlassara, F. ; Strano, E. ; Szilner, Suzana ; Toniolo, N. ; Torresi, D.
engleski
Fusion Hindrance and Quadrupole Collectivity in Collisions of A≃50 Nuclei: The Case of 48Ti + 58Fe
The fusion excitation function of 48Ti + 58Fe has been measured in a wide energy range around the Coulomb barrier, covering 6 orders of magnitude of the cross sections. We present here the preliminary results of this experiment, and a full comparison with the near-by system 58Ni + 54Fe where evidence of fusion hindrance shows up at relatively high cross sections. The sub-barrier cross sections of 48Ti + 58Fe are much larger than those of 58Ni + 54Fe. Significant differences are also observed in the logarithmic derivatives, astrophysical S-factors and fusion barrier distributions. The influence of low-energy nuclear structure on all these trends is pointed out and commented. Coupled-channels calculations using a Woods-Saxon potential are able to reproduce the experimental results for 48Ti + 58Fe. The logarithmic derivative of the excitation function is very nicely fit, and no evidence of hindrance is observed down to around 1 μb. The fusion barrier distribution is rather wide, flat and structureless. It is only in qualitative agreement with the calculated distribution.
fusion excitation function ; coupling effects ; fusion hindrance
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
00057
2015.
objavljeno
10.1051/epjconf/20158600057
Podaci o matičnoj publikaciji
EPJ Web of Conferences, Volume 86, VI International Conference FUSION14
Simenel, C. ; Gomes, P.R.S. ; Hinde, D.J. ; Madhavan, N. ; Navin, A. ; Rehm, K.E.
EDP Sciences
2101-6275
2100-014X
Podaci o skupu
Nepoznat skup
poster
29.02.1904-29.02.2096