Neutron capture reactions relevant to the s and p processes in the region of the N=50 shell closure

被引：5
|
作者：
Dutta, Saumi [1 ]
Gangopadhyay, G. [1 ]
Bhattacharyya, Abhijit [1 ]
机构：
[1] Univ Calcutta, Dept Phys, 92 Acharya Prafulla Chandra Rd, Kolkata 700009, India
来源：
PHYSICAL REVIEW C | 2016年 / 94卷 / 02期
关键词：
HARD-CORE INTERACTION; GAMMA-RAY SPECTRA; CROSS-SECTIONS; MODEL; TC-99; NUCLEOSYNTHESIS; PARAMETERS; ELEMENTS; SR-88; RB-87;
D O I：
10.1103/PhysRevC.94.024604
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 radiative neutron capture cross sections for nuclei participating in the s-process and the p-process nucleosynthesis in and around the N = 50 closed neutron shell have been calculated in a statistical semimicroscopic Hauser-Feshbach approach for the energy range of astrophysical interest. A folded optical-model potential is constructed utilizing the standard DDM3Y real nucleon-nucleon interaction. The folding of the interaction with target radial matter densities, obtained from the relativistic mean-field theory, is done in coordinate space using the spherical approximation. The standard nuclear reaction code TALYS1.8 is used for cross-section calculation. The cross sections are compared with experimental results. Maxwellian-averaged cross sections and astrophysical reaction rates for a number of selected nuclei are also presented.
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