Preliminary conceptual design about the CEPC calorimeters
Preliminary conceptual design about the CEPC calorimeters
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DOI：
10.1142/s0217751x16440267
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发表时间：
2016-11
影响因子：
1.6
通讯作者：
Haijun Yang
中科院分区：
文献类型：
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作者：
Haijun Yang
2013年9月，有人提议将环形正负电子对撞机（CEPC）作为希格斯粒子工厂。初步概念设计报告于2015年完成。1 CEPC探测器设计使用国际直线对撞机探测器-ILD 2作为初始基线。CEPC量热计，包括高粒度电磁量热计（ECAL）和强子量热计（HCAL），旨在精确测量电子，光子，τ和强子喷流的能量。ECAL和HCAL的基本分辨率要求分别为16%E（GeV）和50%E（GeV）。为了充分利用Higgs、W、Z和相关标准模型过程的物理潜能，在能量低于约100 GeV时，喷流能量分辨率需要达到3%-4%或30%/E（GeV）。为了达到所需的性能，粒子流算法（PFA）为导向的量热系统被认为是基线设计。CEPC ECAL探测器选项包括具有模拟读数的硅钨或闪烁器钨结构，而HCAL探测器选项具有闪烁体或气体探测器作为有源传感器，铁作为吸收体。介绍了CEPC工作组在ECAL和HCAL方面的最新研究成果。
The Circular Electron Positron Collider (CEPC) as a Higgs factory was proposed in September 2013. The preliminary conceptual design report was completed in 2015.1 The CEPC detector design was using International Linear Collider Detector — ILD2 as an initial baseline. The CEPC calorimeters, including the high granularity electromagnetic calorimeter (ECAL) and the hadron calorimeter (HCAL), are designed for precise energy measurements of electrons, photons, taus and hadronic jets. The basic resolution requirements for the ECAL and HCAL are about 16%E (GeV) and 50%E (GeV), respectively. To fully exploit the physics potential of the Higgs, W, Z and related Standard Model processes, the jet energy resolution is required to reach 3%–4%, or 30%/E (GeV) at energies below about 100 GeV. To achieve the required performance, a Particle Flow Algorithm (PFA) — oriented calorimetry system is being considered as the baseline design. The CEPC ECAL detector options include silicon–tungsten or scintillator–tungsten structures with analog readout, while the HCAL detector options have scintillator or gaseous detector as the active sensor and iron as the absorber. Some latest R&D studies about ECAL and HCAL within the CEPC working group is also presented.