Systematic analysis of elastic α scattering on A ≈ 118 - 130 nuclei around the Coulomb barrier

被引：2
|
作者：
Mahmoud, Zakaria M. M. [1 ,2 ]
Hemmdan, A. [3 ]
Behairy, Kassem O. [3 ]
机构：
[1] King Khalid Univ, Phys Dept, Abha, Saudi Arabia
[2] New Valley Univ, Phys Dept, Fac Sci, Kharga, Egypt
[3] Aswan Univ, Phys Dept, Fac Sci, Tingar, Egypt
来源：
RESULTS IN PHYSICS | 2020年 / 16卷
关键词：
OPTICAL-MODEL POTENTIALS; FOLDING MODEL; DEPENDENCE; ENERGIES; CD-106(ALPHA; PARTICLES; RELEVANT; RANGE;
D O I：
10.1016/j.rinp.2019.102892
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Alpha elastic scattering angular distributions on target nuclei Sn-118,Sn- 124 and Te120-130 at energies near the Coulomb barrier are analyzed. We used three versions of the nuclear optical model potentials (OMP) to analyze twenty-nine data sets. JLM and the density and energy-dependent DDM3Y1 with finite range exchange term effective interactions were used to generate these potentials. Two real folded potentials based on JLM and DDM3Y1 effective interactions supplied with the conventional Wood-Saxon (WS) imaginary potential are used in the cross sections calculations. These potentials are denoted as JLM-R and DDM3Y1-FR, respectively. In addition, we used the full complex folded OMP, denoted as JLM-RI, to analyze the same data. These potentials successfully predict the cross section of the systems under study. We found that the JLM-R and DDM3Y1-FR could reproduce the measured cross sections over the full angular range very well compared to microscopic JLM-RI potential. Our calculated potentials have a clear energy dependence and in addition a weak target mass dependence. The total reaction cross section and volume integral are investigated in comparison to previous studies. The derived potentials are very promising for the construction of a new global alpha-nucleus potential and provide new parameters of alpha-induced reactions and scattering at the energy range 17-27 MeV.
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页数：17
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