Femtoscopic和电荷平衡相关性的相互作用
The Interplay of Femtoscopic and Charge-Balance Correlations
摘要：
由局部电荷守恒的约束驱动的相关性已经被证明可以提供对超相对论性重离子碰撞中产生的高温物质的化学演化和扩散率的深入了解。由终态相互作用驱动的两粒子相关性允许提取关于相同碰撞的膨胀和溶解的关键飞秒时空信息。虽然来自终态相互作用的相关性主要出现在小的相对动量，几十MeV/ $c$，电荷平衡相关性延伸到数百MeV/ $c$的范围。在几乎所有以前的分析中，这种尺度的分离被用来只关注一个类别或另一个类别。本研究的目的是定量地了解在何种程度上从最终状态相互作用的相关性扭曲的电荷平衡相关性的解释，反之亦然。
英文摘要：
Correlations driven by the constraints of local charge conservation have been shown to provide insight into the chemical evolution and diffusivity of the high-temperature matter created in ultra-relativistic heavy ion collisions. Two-particle correlations driven by final-state interactions have allowed the extraction of critical femtoscopic space-time information about the expansion and dissolution of the same collisions. Whereas correlations from final-state interactions mainly appear at small relative momenta, a few tens of MeV/$c$, charge-balance correlations extend over a range of hundreds of MeV/$c$. In nearly all previous analyses, this separation of scales is used to focus solely on one class or the other. The purpose of this study is to quantitatively understand the degree to which correlations from final-state interactions distort the interpretation of charge-balance correlations and vice versa.
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