arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1806.02129hep-ex
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运行1中ATLAS瓦式量热计的操作和性能

Operation and performance of the ATLAS Tile Calorimeter in Run 1

ATLAS Collaboration

摘要:

瓦量能器是覆盖在大型强子对撞机的ATLAS实验中心区域的强子量能器。大约有10000个光电倍增管收集来自作为活性材料夹在钢板吸收体之间的发光瓦的光。本文概述了在2008年至2012年期间,使用宇宙射线μ子事件和质子-质子碰撞数据在质心能量为7和8 TeV的总积分亮度光度近30 fb $^{-1}$的量热计的性能。介绍了信号重建方法、定标系统以及探测器的工作情况。能量校准方法和时间校准的组合证明了出色的性能,导致在LHC运行1期间在不同条件下的量热计响应具有良好的稳定性。最后,瓦量热计响应孤立的μ子和强子,以及从质子-质子碰撞喷流。结果表明,该系统性能优异,符合技术设计报告中提到的规范。

英文摘要:

The Tile Calorimeter is the hadron calorimeter covering the central region of the ATLAS experiment at the Large Hadron Collider. Approximately 10000 photomultipliers collect light from scintillating tiles acting as the active material sandwiched between slabs of steel absorber. This paper gives an overview of the calorimeter's performance during the years 2008-2012 using cosmic-ray muon events and proton-proton collision data at centre-of-mass energies of 7 and 8 TeV with a total integrated luminosity of nearly 30 fb$^{-1}$. The signal reconstruction methods, calibration systems as well as the detector operation status are presented. The combination of energy calibration methods and time calibration proved excellent performance, resulting in good stability of the calorimeter response under varying conditions during the LHC Run 1. Finally, the Tile Calorimeter response to isolated muons and hadrons as well as to jets from proton-proton collisions is presented. The results demonstrate excellent performance in accord with specifications mentioned in the Technical Design Report.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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