从（e，e 'p）数据确定氩的光谱函数
Determination of the argon spectral function from (e,e'p) data
摘要：
在Jefferson Lab Hall A进行的E12-14-012实验使用天然氩气靶测量了平行运动学中的$(e, e'p)$截面。在这里，我们报告的完整结果的数据集对应的光束能量2.222 GeV的分析，并跨越丢失的动量和丢失的能量范围$15 \lesssim p_m \lesssim 300$ MeV/c和$12 \lesssim E_m \lesssim 80$ MeV。的约化截面，确定为$p_m$和$E_m$与$\approx$ 4\%的精度的函数，已被拟合使用的蒙特卡罗模拟的结果，涉及一个模型的光谱功能，并包括最终状态的相互作用的影响。数据和模拟之间的总体一致性证明是相当令人满意的（$χ^2$ /n.d.o.f.= 1.9）。由此产生的光谱函数将提供有价值的新信息，需要在液氩探测器的中微子相互作用的解释。
英文摘要：
The E12-14-012 experiment, performed in Jefferson Lab Hall A, has measured the $(e, e'p)$ cross section in parallel kinematics using a natural argon target. Here, we report the full results of the analysis of the data set corresponding to beam energy 2.222 GeV, and spanning the missing momentum and missing energy range $15 \lesssim p_m \lesssim 300$ MeV/c and $12 \lesssim E_m \lesssim 80$ MeV. The reduced cross section, determined as a function of $p_m$ and $E_m$ with $\approx$4\% accuracy, has been fitted using the results of Monte Carlo simulations involving a model spectral function and including the effects of final state interactions. The overall agreement between data and simulations turns out to be quite satisfactory ($χ^2$/n.d.o.f.=1.9). The resulting spectral function will provide valuable new information, needed for the interpretation of neutrino interactions in liquid argon detectors.
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