Transfer couplings and hindrance far below the barrier for 40Ca + 96Zr (CROSBI ID 621715)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Stefanini, A.M. ; Montagnoli, G. ; Esbensen, H. ; Corradi, L. ; Courtin, S. ; Fioretto, E. ; Goasduff, A. ; Grebosz, J. ; Haas, F. ; Mazzocco, M. ; Michelagnoli, C. ; Mijatović, Tea ; Montanari, D. ; Pasqualato, G. ; Parascandolo, C. ; Scarlassara, F. ; Strano, E. ; Szilner, Suzana ; Toniolo, N. ; Torresi, D.
engleski
Transfer couplings and hindrance far below the barrier for 40Ca + 96Zr
The sub-barrier fusion excitation function of 40Ca + 96Zr has been measured down to cross sections 2.4μb, i.e. two orders of magnitude smaller than obtained in the previous experiment, where the sub-barrier fusion of this system was found to be greatly enhanced with respect to 40Ca + 90Zr, and the need of coupling to transfer channels was suggested. The purpose of this work was to investigate the behavior of 40Ca + 96Zr fusion far below the barrier. The smooth trend of the excitation function has been found to continue, and the logarithmic slope increases very slowly. No indication of hindrance shows up, and a comparison with 48Ca + 96Zr is very useful in this respect. A new CC analysis of the complete excitation function has been performed, including explicitly one- and two-nucleon Q >0 transfer channels. Such transfer couplings bring significant cross section enhancements, even at the level of a few μb. Locating the hindrance threshold, if any, in 40Ca + 96Zr would require challenging measurements of cross sections in the sub-μb range.
fusion excitation function ; coupling effects ; fusion hindrance
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Podaci o prilogu
00056
2015.
objavljeno
10.1051/epjconf/20158600056
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