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在相对论重离子碰撞中形成QGP时,与之相伴随的有一些非QGP背景事件.把末态(方位角、快度)二维相空间中阶乘矩剧烈上翘的消失与一些普遍认为的QGP信号(如K/π比的上升)联系起来讨论,提出了一种从实验数据中挑选候选的QGP事件的方法.用Mont-Carlo模拟表明,这种方法有效地提高了挑选出来的子样本中QGP事件的信噪比.
There are some non-QGP background events associated with the formation of QGP in a relativistic heavy ion collision. In the end state (azimuth, fast) two-dimensional phase space, the dramatic upturns disappear and some commonly considered QGP signal (such as the rise of K / π ratio) linked to a proposed from the experimental data The way to pick candidate QGP events. The Mont-Carlo simulation shows that this method effectively improves the signal-to-noise ratio of QGP events in the selected sub-samples.