Present status and perspective of dual-readout calorimetry for future accelerators
Present status and perspective of dual-readout calorimetry for future accelerators
复制标题
未来加速器双读数量热法的现状和展望
DOI：
10.1142/s0217751x20410122
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发表时间：
2020
影响因子：
1.6
通讯作者：
L. Pezzotti
中科院分区：
文献类型：
--
作者：
M. Antonello;M. Caccia;R. Santoro;R. Ferrari;G. Gaudio;L. Pezzotti
双读出量热计是一种量热技术，通过同时检测闪烁和切伦科夫光，能够克服无补偿限制。闪烁的光子提供的信号与所有电离粒子在量热计中的能量沉积有关，而切伦科夫光子提供的信号几乎完全与强子簇射中的电磁成分有关。强子诱导簇射的电磁和非电磁成分之间的波动是达到未来轻子对撞机实验所需分辨率的主要限制。在双读出量热计中，通过观察两个独立的信号，可以逐个事件地测量电磁分数，并正确地重建初级强子能量。双读数法在光纤采样量热法中的应用已被证明能够提供能量分辨率约为[公式：见文本]、电磁分辨率约为[公式：见文本]的单强子探测，出色的粒子识别能力，使其成为未来轻子对撞机最有希望的选择之一。本文介绍了双读出量热法的发展现状，以及[公式：参见正文]探测器的可扩展解决方案的发展前景。这包括对材料选择的研究，对纤维的SiPM读数，对纤维进行可能的分段以增强粒子识别能力。
Dual-readout calorimetry is a calorimetric technique able to overcome the noncompensation limit by simultaneously detecting scintillation and Cherenkov light. Scintillating photons provide a signal related to the energy deposition in the calorimeter by all ionising particles while Cherenkov photons provide a signal almost exclusively related to the electromagnetic component in the hadronic shower. Fluctuations among the electromagnetic and non-electromagnetic component of hadronic induced showers represent the major limit to reach resolutions needed in experiments at future leptonic colliders. In a dual-readout calorimeter, by looking at the two independent signals, it is possible to measure, event by event, the electromagnetic fraction and to correctly reconstruct the primary hadron energy. Applications of the dual-readout method in fiber-sampling calorimetry have been shown to be able to provide single hadron detection with an energy resolution around [Formula: see text], electromagnetic resolution around [Formula: see text], excellent particle identification capability, resulting in one of the most promising option for future leptonic colliders. Status-of-art of the dual-readout calorimetry, as well as, perspective in the developments toward scalable solution for [Formula: see text] detectors are presented in this paper. This includes, study on the material choice, SiPM readout of the fibers, possible segmentation of the fibers to enhance particle ID capability.