Prospects for a precision timing upgrade of the CMS PbWO4 crystal electromagnetic calorimeter for the HL-LHC

被引：2
|
作者：
Marzocchi, Badder [1 ,2 ]
机构：
[1] Univ Roma La Sapienza, Rome, Italy
[2] Ist Nazl Fis Nucl, Rome, Italy
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2020年 / 962卷
关键词：
CMS; Electromagnetic calorimeter; APD; Timing; HL-LHC;
D O I：
10.1016/j.nima.2017.10.035
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The upgrade of the Compact Muon Solenoid (CMS) crystal electromagnetic calorimeter (ECAL), which will operate at the High Luminosity Large Hadron Collider (HL-LHC), will achieve a timing resolution of around 30 ps for high energy photons and electrons. In this talk we will discuss the benefits of precision timing for the ECAL event reconstruction at HL-LHC. Simulation studies on the timing properties of PbWO crystals, as well as the impact of the photosensors and the readout electronics on the timing performance, will be presented. Test beam studies on the timing performance of PbWO4 crystals with various photosensors and readout electronics will be shown. (C) 2017 Elsevier B.V. All rights reserved.
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