Uncertainties in neutron densities determined from analysis of 0. 8 GeV polarized proton scattering from nuclei
Uncertainties in neutron densities determined from analysis of 0. 8 GeV polarized proton scattering from nuclei
复制标题
通过分析来自原子核的 0. 8 GeV 偏振质子散射确定中子密度的不确定性
DOI：
--
复制
发表时间：
1978
期刊：
影响因子：
--
通讯作者：
G. Hoffmann
中科院分区：
文献类型：
--
作者：
L. Ray;W. R. Coker;G. Hoffmann
Kerman、McManus和Thaler的一阶自旋相关微观质子-核光学势用于分析800 MeV极化质子弹性微分截面和分析靶核/sup 58/Ni、/sup 90/Zr、/sup 116、124/Sn和/sup 208/Pb的功率数据。近似模型无关的目标中子密度分布的构建，以调查的不确定性，推导的中子密度导致的统计误差和有限的范围内的动量转移的实验角分布。许多其他的实验和理论来源的误差和不确定性被认为是在推导的中子密度和它们的均方根半径的总误差，以获得一个现实的估计。均方根半径的典型误差为+- 0.07 fm。令人印象深刻的定性协议之间的推导中子物质密度和相应的密度预测Hartree-Fock计算。
The first order, spin-dependent microscopic proton-nucleus optical potential of Kerman, McManus, and Thaler is used to analyze 800 MeV polarized proton elastic differential cross section and analyzing power data for target nuclei /sup 58/Ni, /sup 90/Zr, /sup 116,124/Sn, and /sup 208/Pb. Approximately model-independent target neutron density distributions are constructed in order to investigate the uncertainty in the deduced neutron densities resulting from the statistical error and the finite range of momentum transfer in the experimental angular distributions. Numerous other experimental and theoretical sources of error and uncertainty are considered to obtain a realistic estimate of the total error in the deduced neutron densities and their root-mean-squared radii. The typical error in the root-mean-square radii is found to be +- 0.07 fm. Impressive qualitative agreement is found between the deduced neutron matter densities and the corresponding densities predicted by Hartree-Fock calculations.