Influence of nuclear structure on sub-barrier hindrance in Ni+Ni fusion

Details Influence of nuclear structure on sub-barrier hindrance in Ni+Ni fusion Influence of nuclear structure on sub-barrier hindrance in Ni+Ni fusion

2004-02-25

arxiv.org/abs/nucl-ex/0402019v1

Phys.Rev.Lett. 93 (2004) 012701

Physics

Nuclear Physics

Nuclear Experiment

Submitted to Phys. Rev. Lett. 4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.93.012701

Fusion-evaporation cross sections for $^{64}$Ni+$^{64}$Ni have been measured down to the 10 nb level. For fusion between two open-shell nuclei, this is the first observation of a maximum in the $S$-factor, which signals a strong sub-barrier hindrance. A comparison with the $^{58}$Ni+$^{58}$Ni, $^{58}$Ni+$^{60}$Ni, and $^{58}$Ni+$^{64}$Ni systems indicates a strong dependence of the energy where the hindrance occurs on the stiffness of the interacting nuclei.

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