位於美國布魯克海文國家實驗室 (Brookhaven National Laboratory) 的相對論性重離子對撞機 (Relativistic Heavy Ion Collider) 中的 STAR 實驗於 2014 年完成了渺子探測器 (Muon Telescope Detector) 的安裝，使我們能夠藉由雙渺子衰變來研究夸克偶對 (quarkonium) 相關的物理。
在這篇論文中，我們結合了於 2014 及 2016 年收集的質心能量為 200 GeV 的金離子金離子對撞實驗數據，藉由測量核抑制因子 (nuclear modification factor, RAA) 來研究 Υ 粒子在金離子金離子對撞實驗中受到夸克膠子電漿態 (quark gluon plasma) 影響而產生的生成抑制現象。

The Solenoid Tracker At RHIC (STAR) is one of the most important high energy nuclear physics experiments in the world and the only on-going experiment at Relativistic Heavy Ion Collider, which is located at Brookhaven National Laboratory. The Muon Telescope Detector (MTD) is dedicated for identifying and triggering muons at STAR and it was installed in 2014. This allows us to study physics using muon final states.
In this thesis, we used the data of Au-Au collision at √sNN =200GeV which is collected in 2014 and 2016 to study the suppression effect for Υ(1, 2, 3S) due to the quark gluon plasma (QGP) created in heavy-ion collisions by measuring the Υ nuclear modification factor (RAA).

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