Proton elastic scattering on light nuclei. II. Nuclear structure effects
Proton elastic scattering on light nuclei. II. Nuclear structure effects
复制标题
轻核上的质子弹性散射。
DOI：
--
复制
发表时间：
1980
期刊：
影响因子：
--
通讯作者：
A. Pantaleo
中科院分区：
文献类型：
--
作者：
E. Fabrici;S. Micheletti;M. Pignanelli;F. Resmini;R. Leo;G. D’erasmo;A. Pantaleo
在35.2 MeV入射能量下，测量了61个质量数在9 ~ 70之间的原子核上质子散射的微分截面。为了扩展先前的测量，进一步收集了10个原子核在29.7 MeV下的数据。从对数据的详细检查中可以看出，弹性和非弹性横截面值与四极变形参数之间存在明确的相关性。/ /订阅2。在1p壳层填充的正向角处，核结构效应也很明显。导出了一组质量相关的光学模型参数，该参数在前角处产生可接受的配合。发现虚部包含与上述结构效应相关的项。讨论了这一结果和耦合通道分析的结果。
Differential cross sections for proton scattering on 61 nuclei with mass numbers between 9 and 70 were measured at 35.2 MeV incident energy. To extend previous measurements further data were collected at 29.7 MeV on 10 nuclei. From a detailed inspection of the data a definite correlation emerges between the elastic and inelastic cross section values at backward angles and the quadrupole deformation parameters ..beta../sub 2/. Nuclear structure effects are also evident at forward angles at the filling of the 1p shell. A set of mass dependent optical-model parameters which produces acceptable fits at forward angles was derived. The imaginary part was found to contain terms connected with the above structure effects. The results of this and of a coupled-channels analysis are discussed.