Comparison of different proximity potentials for asymmetric colliding nuclei

被引：209

作者：

Dutt, Ishwar ^{[1
]}

Puri, Rajeev K. ^{[1
]}

机构：

[1] Punjab Univ, Dept Phys, Chandigarh 160014, India

来源：

PHYSICAL REVIEW C | 2010年 / 81卷 / 06期

关键词：

SUBBARRIER FUSION; ISOTOPIC DEPENDENCE; STABLE NUCLEI; ENERGY; BARRIER; FORMULA; THRESHOLD; CL-37; MODEL;

D O I：

10.1103/PhysRevC.81.064609

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：

Using the different versions of phenomenological proximity potential as well as other parametrizations within the proximity concept, we perform a detailed comparative study of fusion barriers for asymmetric colliding nuclei with asymmetry parameter as high as 0.23. In all, 12 different proximity potentials are robust against the experimental data of 60 reactions. Our detailed study reveals that the surface energy coefficient as well as radius of the colliding nuclei depend significantly on the asymmetry parameter. All models are able to explain the fusion barrier heights within +/- 10% on the average. The potentials due to Bass 80, AW 95, and Denisov DP explain nicely the fusion cross sections at above-as well as below-barrier energies.

引用

页数：12

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