ANALYSIS OF NUCLEUS-NUCLEUS FUSION CROSS-SECTION AT EXTREME SUB-BARRIER ENERGIES

被引：4
|
作者：
Sahu, Basudeb [2 ]
Sahu, Bidhubhusan [1 ]
机构：
[1] Inst Phys, Bhubaneswar 751005, Orissa, India
[2] N Orissa Univ, Dept Phys, Baripada 757003, India
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS | 2012年 / 21卷 / 07期
关键词：
Deep sub-barrier fusion; elastic scattering; S factor; L factor; ELASTIC-SCATTERING; BARRIER;
D O I：
10.1142/S021830131250067X
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：
The nucleus nucleus potential is expressed phenomenologically by a new radial form as an alternative to the conventional Woods-Saxon form. By virtue of novel representation of the surface diffuseness, the potential added with the electrostatic part generates a unique barrier potential which provides simultaneous explanations of two important mechanisms namely elastic scattering and fusion in a heavy-ion reaction within the framework of optical potential model of scattering and region-wise absorption in analytical form. The drastic falloff of experimental results of fusion cross-section (sigma(fus)) at extreme sub-barrier energy (E) and its manifestation depicting maximum in S (= E sigma(fus)e(2 pi eta)) factor and steep rise in L (= dIn(E sigma(fus))/dE) factor are explained with remarkable success.
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页数：18
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