新数据加强了短程相关性和EMC效应之间的联系
New data strengthen the connection between Short Range Correlations and the EMC effect
摘要：
最近发表的测量的两个核子短程相关（$NN$ -SRC）标度因子，$a_2(A/d)$，加强了以前观察到的EMC效应的大小之间的相关性测量电子深非弹性散射在$0.35\le x_B\le 0.7$和SRC标度因子测量在$x_B \ge 1$。新的结果提高了精度，并包括以前未测量的原子核。$^9$ Be和$^{197}$ Au的$a_2(A/d)$测量值与基于EMC-SRC相关性的已发表预测一致。本文探讨了新的数据和不同的校正数据的EMC-SRC相关的斜率和质量，提取的氘IMC效应的大小，和自由中子结构函数的影响。结果表明，线性EMC-SRC相关性是强大的，相关性的斜率是不敏感的大多数组合的修正检查在这项工作中。这加强了$NN$ -SRC和EMC效应都与核中的高动量核子有关的解释。
英文摘要：
Recently published measurements of the two nucleon short range correlation ($NN$-SRC) scaling factors, $a_2(A/d)$, strengthen the previously observed correlation between the magnitude of the EMC effect measured in electron deep inelastic scattering at $0.35\le x_B\le 0.7$ and the SRC scaling factor measured at $x_B \ge 1$. The new results have improved precision and include previously unmeasured nuclei. The measurements of $a_2(A/d)$ for $^9$Be and $^{197}$Au agree with published predictions based on the EMC-SRC correlation. This paper examines the effects of the new data and of different corrections to the data on the slope and quality of the EMC-SRC correlation, the size of the extracted deuteron IMC effect, and the free neutron structure function. The results show that the linear EMC-SRC correlation is robust and that the slope of the correlation is insensitive to most combinations of corrections examined in this work. This strengthens the interpretation that both $NN$-SRC and the EMC effect are related to high momentum nucleons in the nucleus.
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