具有$(e,e^{\prime}K^{+})$反应的$Λ$ -超核谱学的实验技术和性能
Experimental techniques and performance of $Λ$-hypernuclear spectroscopy with the $(e,e^{\prime}K^{+})$ reaction
摘要：
通过$(e,e^{\prime}K^{+})$反应的$Λ$超核的丢失质谱在过去的二十年中已经通过在JLab Hall A和C的实验发展。对于最新的实验，在C厅的E05-115，我们开发了一个新的光谱仪系统，由HKS和HES组成;在$Λ$ -超核反应光谱中获得了最佳的能量分辨率（$E_Λ \simeq0.5$ -MeV FWHM）和$B_Λ$精度（$B_Λ\leq0.2$ MeV）。本文介绍了$(e,e^{\prime}K^{+})$反应与其他反应和实验方法相比的特点。此外，还介绍了E05 - 115的实验装置，一些重要的分析，如绝对能量标度的半自动校准，以及在E05-115中实现的性能。
英文摘要：
The missing-mass spectroscopy of $Λ$ hypernuclei via the $(e,e^{\prime}K^{+})$ reaction has been developed through experiments at JLab Halls A and C in the last two decades. For the latest experiment, E05-115 in Hall C, we developed a new spectrometer system consisting of the HKS and HES; resulting in the best energy resolution ($E_Λ \simeq0.5$-MeV FWHM) and $B_Λ$ accuracy ($B_Λ\leq0.2$ MeV) in $Λ$-hypernuclear reaction spectroscopy. This paper describes the characteristics of the $(e,e^{\prime}K^{+})$ reaction compared to other reactions and experimental methods. In addition, the experimental apparatus, some of the important analyses such as the semi-automated calibration of absolute energy scale, and the performance achieved in E05-115 are presented.
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