Proton-3He elastic scattering at intermediate energies
Proton-3He elastic scattering at intermediate energies
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中间能量下的质子 3He 弹性散射
DOI：
10.1103/physrevc.103.044001
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发表时间：
2021
影响因子：
3.1
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
A.Watanabe;S.Nakai;Y.Wada;K.Sekiguchi;M.Itoh;et al.
我们给出了在65mev附近弹性散射的截面、质子和分析能力以及自旋相关系数的精确测量，并与基于实际核势和等压激发模型的严格四核子散射计算进行了比较。在横截面最小值附近的一些观测值中可以看到明显的差异。利用计算截面和结合能之间的标度关系的理论预测不能成功地再现数据。计算截面对电位的高灵敏度和相当小的等压线效应与氘核-质子弹性散射的特点不同。上述结果表明，在中间能量的散射是一个很好的工具，以探索核相互作用不能通过三核子散射。
We present a precise measurement of the cross section, proton andanalyzing powers, and spin correlation coefficientforelastic scattering near 65 MeV, and a comparison with rigorous four-nucleon scattering calculations based on realistic nuclear potentials and a model with-isobar excitation. Clear discrepancies are seen in some of the measured observables in the regime around the cross section minimum. Theoretical predictions using scaling relations between the calculated cross section and thebinding energy are not successful in reproducing the data. Large sensitivity to thepotentials and rather small-isobar effects in the calculated cross section are noticed as different features from those in the deuteron-proton elastic scattering. The results obtained above indicate thatscattering at intermediate energies is an excellent tool to explore nuclear interactions not accessible by three-nucleon scattering.