论文标题
ISOBAR碰撞之前的CME搜索状态和Star的盲目分析方法
Status of CME Search Before Isobar Collisions and Methods of Blind Analysis From STAR
论文作者
论文摘要
Star合作目前正在对2018年RHIC进行的ISOBAR碰撞数据进行盲目分析，以对手性磁效应（CME）进行决定性测试。为什么在实验中检测CME的信号很难？我们真的了解背景的不同来源吗？为什么要观察P/D+A和A+A之间的类似电荷分离并不能阻止我们追求CME的搜索？在这项贡献中，我试图解决其中一些问题，并根据新的方法和可观察物进行简要概述了一些最近的星星分析，以隔离最高RHIC能量的CME驱动信号和非CME背景贡献。最后，我描述了Isobar数据盲目分析的过程。一个杰出的问题仍然存在 - 如果我们的能量下降会发生什么？我通过讨论新事件平面检测器（EPD）升级如何使用RHIC BES-II程序中的数据为CME搜索提供新功能来解决此问题。
The STAR collaboration is currently pursuing the blind analysis of the data for isobar collisions that was performed at RHIC in the year 2018 to make a decisive test of the Chiral Magnetic Effect (CME). Why is it so difficult to detect signals of CME in the experiment? Do we really understand different sources of background? Why observing similar charge separation between p/d+A and A+A does not stop us from pursuing the search for CME? In this contribution, I attempt to address some of these questions and briefly outline a few recent STAR analyses based on new methods and observables to isolate the possible CME-driven signal and non-CME background contributions at the top RHIC energy. Finally, I describe the procedure for the blind analysis of the isobar data. An outstanding question remains -- what happens if we go down in energy? I address this by discussing how the new event-plane detector (EPD) upgrade provides a new capability at STAR towards CME search using the data from the RHIC BES-II program.
