用干涉布喇格反射法测量中子电荷半径
Neutron Charge Radius Deduced from Interferometric Bragg Reflection Technique
摘要:
本文考虑了用热中子高精度测量核散射长度和布拉格反射的散射振幅来确定中子均方电荷半径的可能性。利用与Shull在1968年提出的相同的干涉测量技术,可以测量硅中约8个高阶布拉格反射的散射振幅,而没有污染问题。这将提供一个与阿贡-加兴和杜布纳不一致的值一样精确的中子电荷半径值,以及比目前可用的硅的德拜-沃勒因子精确十倍的硅的德拜-沃勒因子。
英文摘要:
The possibility of the determination of the neutron mean square charge radius from high-precision thermal-neutron measurements of the nuclear scattering length and of the scattering amplitudes of Bragg reflections is considered. Making use of the same interferometric technique as Shull in 1968, the scattering amplitudes of about eight higher-order Bragg reflections in silicon could be measured without contamination problem. This would provide a value of the neutron charge radius as precise as the disagreeing Argonne-Garching and Dubna values, as well as a Debye-Waller factor of silicon ten times more precise than presently available.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。