Parity Violating Measurements of Neutron Densities and Nuclear Structure
Parity Violating Measurements of Neutron Densities and Nuclear Structure
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DOI：
10.1142/9789812799753_0067
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发表时间：
2000-10
期刊：
影响因子：
--
通讯作者：
C. Horowitz
中科院分区：
文献类型：
--
作者：
C. Horowitz
宇称破坏电子核散射是一种干净而有力的测量中子在核中空间分布的工具，其精度是前所未有的。宇称破缺产生于电磁振幅和弱中性振幅的干涉，标准模型的Z ^0主要与低Q ^2的中子耦合。现在，在现有设施上进行实验是可行的。我们发现，理论修正要么很小，要么很好地理解，这使得解释干净。中子密度测量可能对核结构、原子宇称不守恒实验和中子星的结构有许多意义。
Parity violating electron nucleus scattering is a clean and powerful tool for measuring the spatial distributions of neutrons in nuclei with unprecedented accuracy. Parity violation arises from the interference of electromagnetic and weak neutral amplitudes, and the $Z^0$ of the Standard Model couples primarily to neutrons at low $Q^2$. Experiments are now feasible at existing facilities. We show that theoretical corrections are either small or well understood, which makes the interpretation clean. A neutron density measurement may have many implications for nuclear structure, atomic parity nonconservation experiments, and the structure of neutron stars.