ALICE Electromagnetic Calorimeter Technical Design Report
ALICE Electromagnetic Calorimeter Technical Design Report
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发表时间：
2008-08
期刊：
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通讯作者：
P. Cortese;T. Peitzmann;A. P. Haas;G. Nooren;C. J. Oskamp;A. Brink;C. Ivan;R. Kamermans;
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文献类型：
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作者：
P. Cortese;T. Peitzmann;A. P. Haas;G. Nooren;C. J. Oskamp;A. Brink;C. Ivan;R. Kamermans;
大型强子对撞机的大型离子对撞机实验（ALICE）包含一系列广泛的探测器系统，用于测量强子、轻子和光子。ALICE的目的是对高能核-核碰撞进行全面的测量，以研究极端条件下的QCD物质，并研究受限物质与夸克-胶子等离子体（QGP）之间的相变。完整的ALICE物理程序的讨论可以在[1，2]中找到。高能部分子在物质中的相互作用和能量损失提供了一种灵敏的断层成像探测器，用于探测高能核碰撞（“喷流淬灭”）中产生的介质[3-6]。喷流淬灭测量在相对论重离子对撞机（RHIC）[7-10]中发挥了关键作用，并将成为LHC核碰撞研究的核心。本技术设计报告描述了将安装在ALICE中央探测器中的大验收电磁热量计（EMCal）。EMCal增强了ALICE的射流淬火测量能力。EMCal的加入能够触发高能射流，显著降低射流淬火研究的测量偏差，提高射流能量分辨率，并增强现有ALICE测量高动量光子和电子的能力。结合ALICE跟踪和识别从极低铂到高铂粒子的出色能力，EMCal能够在LHC上对射流淬火进行广泛的研究。
ALICE (A Large Ion Collider Experiment) at the LHC contains a wide array of detector systems for measuring hadrons, leptons, and photons. ALICE is designed to carry out comprehensive measurements of high energy nucleus-nucleus collisions, in order to study QCD matter under extreme conditions and to study the phase transition between confined matter and the Quark-Gluon Plasma (QGP). Discussion of the full ALICE physics program can be found in [1, 2]. The interaction and energy loss of high energy partons in matter provides a sensitive tomographic probe of the medium generated in high energy nuclear collisions (“jet quenching”) [3–6]. Jet quenching measurements have played a key role at the Relativistic Heavy Ion Collider (RHIC) [7–10] and will be central to the study of nuclear collisions at the LHC. This Technical Design Report describes a large acceptance Electromagnetic Calorimeter (EMCal) that will be installed in the ALICE central detector. The EMCal enhances ALICE's capabilities for jet quenching measurements. The addition of the EMCal enables triggering on high energy jets, reduces significantly the measurement bias for jet quenching studies, improves jet energy resolution, and augments existing ALICE capabilities to measure high momentum photons and electrons. Combined with ALICE's excellent capabilities to track and identify particles from very low pt to high pt the EMCal enables an extensive study of jet quenching at the LHC.