Dilepton Program with Time-of-Flight Detector at the STAR Experiment

被引：1
|
作者：
Dong, Xin [1 ]
Ruan, Lijuan [2 ]
Shao, Ming [3 ]
Sun, Yongjie [3 ]
Tang, Zebo [3 ]
Xu, Zhangbu [2 ]
Zha, Wangmei [3 ]
Zhang, Yifei [3 ]
机构：
[1] Nucl Sci Div, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[2] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA
[3] Univ Sci & Technol China, State Key Lab Particle Detect & Elect, Hefei 230026, Peoples R China
来源：
SYMMETRY-BASEL | 2023年 / 15卷 / 02期
关键词：
quark gluon plasma; heavy ion collision; dilepton; chiral symmetry restoration; thermal radiation; strong magnetic field; Breit-Wheeler process; QUARK-GLUON PLASMA; RESISTIVE PLATE CHAMBER; HEAVY-ION COLLISIONS; POSITRON PAIR PRODUCTION; MONTE-CARLO-SIMULATION; PLUS AU COLLISIONS; PB-PB COLLISIONS; MID-RAPIDITY; GAMMA-GAMMA; RADIATION;
D O I：
10.3390/sym15020392
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Pairs of lepton and antilepton (dilepton) in a continuous mass range are one of the most experimentally challenging and golden probes of the quark-gluon plasma (QGP) produced in heavy ion collisions because they do not strongly interact with the hot and dense medium, and reflect the properties of the medium at the time the dilepton is generated. The measurements of dileptons require lepton identification with high purity and high efficiency at large detector acceptance. STAR is one of two large experiments at the relativistic heavy ion collider with a primary goal of searching for the QGP and studying its properties. The STAR experiment launched a comprehensive dielectron (e(+)e(-)) program enabled by the time-of-flight (TOF) detector that had been fully installed in 2010. In this article, we review the decade-long R & D, the construction and performance of the STAR TOF detector, and dielectron measurements, including thermal dielectron production and dielectron production from the Breit-Wheeler process. Future perspectives are also discussed.
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页数：14
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