AEgIS实验中用于反氢探测的低温追踪探测器
仪器与探测器
2022-03-08 v1 高能物理 - 实验
原子物理
摘要
我们介绍了快速湮灭低温追踪探测器（FACT）的调试，该探测器安装在AEgIS实验的1 T超导磁体内部的反氢产生阱周围。FACT旨在探测由反质子湮灭产生的π介子。其794根闪烁光纤在4 K下工作，并由近室温的硅光电倍增管（MPPC）读出。FACT以几纳秒的时间分辨率提供反质子/反氢湮灭位置信息。我们介绍了使该探测器成功运行以探测反氢的硬件和软件研发，以及基于反质子损失的效率评估结果。反氢信号的主要背景是正电子撞击正电子素转换靶，并在预期反氢信号出现前不久产生大量伽马射线，这些伽马射线在MPPC中产生可观的信号。我们详述了该背景信号的特征及其对反氢探测效率的影响。
引用
@article{arxiv.2203.03055,
title = {A cryogenic tracking detector for antihydrogen detection in the AEgIS experiment},
author = {C. Amsler and M. Antonello and A. Belov and G. Bonomi and R. S. Brusa and M. Caccia and A. Camper and R. Caravita and F. Castelli and D. Comparat and G. Consolati and A. Demetrio and L. Di Noto and M. Doser and P. A. Ekman and M. Fani and R. Ferragut and S. Gerber and M. Giammarchi and A. Gligorova and F. Guatieri and P. Hackstock and D. Haider and S. Haider and A. Hinterberger and A. Kellerbauer and O. Khalidova and D. Krasnicky and V. Lagomarsino and C. Malbrunot and S. Mariazzi and V. Matveev and S. R. Muller and G. Nebbia and P. Nedelec and L. Nowak and M. Oberthaler and E. Oswald and D. Pagano and L. Penasa and V. Petracek and F. Prelz and M. Prevedelli and B. Rienaecker and J. Robert and O. M. Rohne and A. Rotondi and H. Sandaker and R. Santoro and J. Storey and G. Testera and I. C. Tietje and V. Toso and T. Wolz and J. Wuethrich and P. Yzombard and C. Zimmer and N. Zurlo},
journal= {arXiv preprint arXiv:2203.03055},
year = {2022}
}