OPTICAL-MODEL ANALYSIS WITH SPIN-ORBIT POTENTIAL FOR 30-MEV AND 35-MEV 3HE ELASTIC SCATTERING

被引:44
作者
LUETZELSCHWAB, JW
HAFELE, JC
机构
[1] Department of Physics, Washington University, Saint Louis
[2] Dickinson College, Carlisle, PA
来源
PHYSICAL REVIEW | 1969年 / 180卷 / 04期
关键词
D O I
10.1103/PhysRev.180.1023
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Measured differential cross sections are reported for 30-MeV He3 ions elastically scattered from Al27, V51, Co59, Ni60, Y89, Cd114, In115, and Sn116 for angles between 6°and 165°and for 35-MeV He3 ions elastically scattered from Co59, Ni60, In115, and Sn116 for angles between 6°and 140°. The data are compared with predictions of the nuclear optical model, and potential parameters that produce optimum fits with a least-squares computer routine are reported. Good fits at back angles for Al27, V51, Co59, and Ni60 are obtained only with the inclusion of a spin-orbit interaction with a magnitude between 2 and 5 MeV for most cases. The back-angle data for these nuclei also tend to suppress discrete ambiguities in the potential well depths. A continuous ambiguity between the radius and the diffuseness parameters is found to be related to a constancy of the root-mean-square radius. Effects of experimental uncertainties on the potential parameters are also presented. © 1969 The American Physical Society.
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页码:1023 / +
页数:1
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