Astrophysical S-factors for the p+16O and n+16O captures from the analysis of 16O(d,n)17F and 16O(d,p)17O transfer reactions

被引:0
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作者
Assuncao, M. [1 ]
Lichtenthaeler, R. [1 ]
Guimaraes, V. [1 ]
Lepine-Szily, A. [1 ]
Moro, A. M. [1 ]
机构
[1] Univ Sao Paulo, Inst Fis, Dept Fis Nucl, CP 66318, BR-05315970 Sao Paulo, Brazil
基金
巴西圣保罗研究基金会;
关键词
direct reaction; coupled-channel; distorted-wave model; capture cross section; astrophysical; S-factor;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Coupled reaction channels calculations were performed for the O-16(d,n)F-17 and O-16(d,p)O-17 transfer reactions for the ground and first excited states at several energies from E-lab=2.29 MeV up to 3.27 MeV. A strong polarization effect between the entrance channel and the transfer, O-16(d,n)F-17 (1/2(+),0.495) and O-16(d,n)O-17 (1/2(+),0.87), channels was observed. This polarization effect had to be taken into account to all orders for obtaining realistic spectroscopic factors from these reactions. The O-16(p,gamma)F-17 and O-16(n,gamma)O-17 direct captures were calculated using the Asymptotic Normalization Coefficients (ANC) values from these transfer reactions analysis. The astrophysical S-factors were compared'to measurements. The Maxwellian-averaged neutron capture cross section at kT=30 keV was 22(3)mu barn.
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页码:158 / +
页数:2
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