论文标题
在公平的压缩性男性物质实验中同时进行若子和参考强体测量值
Simultaneous muon and reference hadron measurements in the Compressed Baryonic Matter experiment at FAIR
论文作者
论文摘要
在达姆施塔特（Darmstadt）的抗蛋白质和离子研究（FAIR）的未来设施中，压缩的重磅物质（CBM）实验的任务是探索中子恒星核心可能存在的高净baryon密度的QCD相图。 The CBM detector system is designed to perform multi-differential measurements of hadrons and leptons in central gold-gold collisions at beam energies between 2 and 11 A GeV with unprecedented precision and statistics.为了减少通常患有较大组合背景的轻子测量的系统误差，电子和MUON都将通过相同的接受度进行测量。到目前为止，在158a GEV以下的束能量的重合离子碰撞中尚未进行双肌测量。电子识别的主要设备，即环形成像Cherenkov（Rich）检测器，可以用包含强子吸收器的设置和用于MUON测量值的探测器代替。为了获得反应的完整图片，重要的是同时测量瘦素和哈子。对于富人来说，这一要求是满足材料预算低的富人的需求，只有很小的影响会影响到飞行时间（TOF）探测器的途中的Hadron的轨迹。相比之下，在同一实验接受中同时测量了兆和黑龙，构成了重大挑战。本文回顾了CBM实验的模拟性能，以进行MUON识别，并可能同时进行强子测量。
The mission of the Compressed Baryonic Matter (CBM) experiment at the future Facility for Antiproton and Ion Research (FAIR) in Darmstadt is to explore the QCD phase diagram at high net baryon densities likely to exist in the core of neutron stars. The CBM detector system is designed to perform multi-differential measurements of hadrons and leptons in central gold-gold collisions at beam energies between 2 and 11 A GeV with unprecedented precision and statistics. In order to reduce the systematic errors of the lepton measurements, which generally suffer from a large combinatorial background, both electrons and muons will be measured with the same acceptance. Up to now, no di-muon measurements have been performed in heavy-ion collisions at beam energies below 158A GeV. The main device for electron identification, a Ring Imaging Cherenkov (RICH) detector, can be replaced by a setup comprising hadron absorbers and tracking detectors for muon measurements. In order to obtain a complete picture of the reaction, it is important to measure simultaneously leptons and hadrons. This requirement is fulfilled for the RICH, which has a low material budget, and only little affects the trajectories of hadrons on their way to the Time-of-Flight (TOF) detector. In contrast, the simultaneous measurement of muons and hadrons within the same experimental acceptance poses a substantial challenge. This article reviews the simulated performance of the CBM experiment for muon identification, together with the possibility of simultaneous hadron measurements.
