Near-barrier fusion of 32S+90,96Zr, 16O+76Ge and 18O+74Ge

被引：3

作者：

Jia, H. M. ^{[1
]}

Lin, C. J. ^{[1
]}

Yang, F. ^{[1
]}

Xu, X. X. ^{[1
]}

Zhang, H. Q. ^{[1
]}

Liu, Z. H. ^{[1
]}

Yang, L. ^{[1
]}

Zhang, T. ^{[1
]}

Bao, P. F. ^{[1
]}

Sun, L. J. ^{[1
]}

机构：

[1] China Inst Atom Energy, Beijing 102413, Peoples R China

来源：

11TH INTERNATIONAL CONFERENCE ON NUCLEUS-NUCLEUS COLLISIONS (NN2012) | 2013年 / 420卷

关键词：

HEAVY-ION FUSION; SUBBARRIER FUSION; COULOMB BARRIER; ENHANCEMENT;

D O I：

10.1088/1742-6596/420/1/012124

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

This contribution presents the recent experimental results on heavy-ion near-barrier fusion, mainly aiming at the effect of positive Q-value neutron transfer on the fusion process. Fusion excitation functions of S-32+Zr-90,Zr-96, O-16+Ge-76 and O-18+Ge-74 have been measured with an electrostatic deflector setup. The fusion barrier distributions have been extracted from the measured fusion excitation functions. Different conclusions are obtained from the analysis of both the fusion excitation functions and the barrier distributions, that is, S-32+Zr-96 shows obvious fusion enhancement related to the positive Q-value neutron transfer channels and was reproduced with Zagrebaev's semiclassical model, but O-18+Ge-74 shows no such effect. More comprehensive reaction dynamics need to be considered than the up-to-date coupled-channels calculations.

引用

页数：6

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