Beam test performance of prototype silicon detectors for the Outer Tracker for the Phase-2 Upgrade of CMS
Beam test performance of prototype silicon detectors for the Outer Tracker for the Phase-2 Upgrade of CMS
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DOI：
10.1088/1748-0221/15/03/p03014
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发表时间：
2020-03
影响因子：
1.3
通讯作者：
W. Adam;T. Bergauer;D. Bloch;E. Brondolin;M. Dragicevic;R. Frühwirth;V. Hinger;H. Steininger
中科院分区：
文献类型：
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作者：
W. Adam;T. Bergauer;D. Bloch;E. Brondolin;M. Dragicevic;R. Frühwirth;V. Hinger;H. Steininger
一个新的CMS跟踪器探测器将安装在高亮度LHC（HL-LHC）运行。该探测器包括两个紧密间隔的平行传感器板和前端ASIC模块，能够以40 MHz的光束交叉率将跟踪信息传输到CMS Level-1（L1）触发器。在L1触发决策中包含跟踪信息对于在HL-LHC上有效选择感兴趣的事件至关重要。CMS二进制芯片（CBC）被设计用于读取和关联来自成对跟踪器传感器的命中，形成所谓的跟踪存根。这是第一次，原型辐照模块和全尺寸模块，都配备了第二版的CBC，已在测试束设施。已经研究了用于各种入射角的模块的短截线查找逻辑的效率。的模块拒绝轨道的横向动量小于2 GeV的能力已被证明。对于用辐照传感器构建的模块，未观察到残根查找性能的显著下降。本文介绍了梁试验的结果。
A new CMS tracker detector will be installed for operation at the High Luminosity LHC (HL-LHC). This detector comprises modules with two closely spaced parallel sensor plates and front-end ASICs capable of transmitting tracking information to the CMS Level-1 (L1) trigger at the 40 MHz beam crossing rate. The inclusion of tracking information in the L1 trigger decision will be essential for selecting events of interest efficiently at the HL-LHC. The CMS Binary Chip (CBC) has been designed to read out and correlate hits from pairs of tracker sensors, forming so-called track stubs. For the first time, a prototype irradiated module and a full-sized module, both equipped with the version 2 of the CBC, have been operated in test beam facilities. The efficiency of the stub finding logic of the modules for various angles of incidence has been studied. The ability of the modules to reject tracks with transverse momentum less than 2 GeV has been demonstrated. For modules built with irradiated sensors, no significant drop in the stub finding performance has been observed. Results from the beam tests are described in this paper.