论文标题
$ x $ resscaling模型中短程相关核的欧洲宇宙合作效应
The European Muon Collaboration effect from short-range correlated nucleons in a $x$-rescaling model
论文作者
论文摘要
在本文中，我们研究了核EMC效应仅来自核内的N-N SRC对，而N-N-N SRC对的性质在各种核中是普遍的，使用了EMC效应的常规$ x $ ression-resparing模型。通过先前确定的短距离相关核子的有效质量和估计的N-N SRC对的数量，我们计算了$ x $ resscaling方法中各种核的EMC效应。根据我们的计算，由于SRC核子的质量缺陷引起的核EMC效应不足以在实验中重现观察到的EMC效应。我们推测，平均场单核的内部结构显然也被修饰，或者EMC效应的起源超过N-N SRC构型（例如$α$ cluster），或者N-N SRC对的通用性从光到较重的核侵犯了N-N-N SRC对的通用性。
In this paper, we examine the hypothesis that the nuclear EMC effect comes merely from the N-N SRC pairs inside the nucleus and that the properties of N-N SRC pair are universal among the various nuclei, using the conventional $x$-rescaling model for the EMC effect. With the previously determined effective mass of the short-range correlated nucleon and the number of N-N SRC pairs estimated, we calculate the EMC effect of various nuclei within the $x$-rescaling approach. From our calculations, the nuclear EMC effect due to the mass deficits of the SRC nucleons is not enough to reproduce the observed EMC effect in experiments. We speculate that the internal structure of the mean-field single nucleon is also obviously modified, or there are more origins of the EMC effect beyond the N-N SRC configuration (such as the $α$ cluster), or the universality of N-N SRC pair is violated noticeably from light to heavy nuclei.
