面向CMS的MATHUSLA长寿命粒子探测器概念设计报告
仪器与探测器
2025-03-28 v1 高能物理 - 实验
高能物理 - 唯象学
摘要
我们提出面向HL-LHC的MATHUSLA（MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles）长寿命粒子探测器的概念设计报告（CDR），涵盖设计、制造与安装工作，安装于CERN Point 5。MATHUSLA是一台规模为40米的探测器，内部充填空气腔，配以装置有scintillator tracking探测器，位于CMS附近。其巨大的尺寸、靠近CMS相互作用点以及约100米的岩石屏蔽，使其能够探测许多高度动机的LPP信号，探测灵敏度远超HL-LHC主探测器的极限，灵敏度可提升一个数量级甚至两个数量级。数据采集预计随着HL-LHC运行的启动而开始。我们提出了新的40米设计：包括各个scintillator棒、波长移频光纤、组织化为tracking层、tracking模块、塔楼模块及抗干扰探测器的布局；定义了高层次的支持电子学、数据采集与触发系统设计，其中包括向CMS供应硬件触发信号，用于记录LPP产生事件；概述了计算系统、土木工程与安全考量；并呈现项目的初步成本估算与时间表。我们还对重要的宇宙射线与HL-LHC μ子背景进行了详细模拟研究，实施完整的轨迹/顶点重建与背景抑制，以最终证明在真实的LPP搜索中实现高信号效率且<1个背景事件。这种灵敏度对于探测器设计或背景模拟的细节均具有鲁棒性。附录提供了various补充信息。
引用
@article{arxiv.2503.20893,
title = {Conceptual Design Report for the MATHUSLA Long-Lived Particle Detector near CMS},
author = {Branden Aitken and Cristiano Alpigiani and Juan Carlos Arteaga-Velázquez and Mitchel Baker and Kincso Balazs and Jared Barron and Brian Batell and Austin Batz and Yan Benhammou and Tamara Alice Bud and Karen Salomé Caballero-Mora and John Paul Chou and David Curtin and Albert de Roeck and Miriam Diamond and Mariia Didenko and Keith R. Dienes and William Dougherty and Liam Andrew Dougherty and Marco Drewes and Sameer Erramilli and Erez Etzion and Arturo Fernández Téllez and Grace Finlayson and Oliver Fischer and Jim Freeman and Jonathan Gall and Ali Garabaglu and Bhawna Gomber and Stephen Elliott Greenberg and Jaipratap Singh Grewal and Zoe Hallman and Bahgat Hassan and Yuekun Heng and Keegan Humphrey and Trystan Humphrey and Graham D. Kribs and Alex Lau and Jiahao Liao and Zhen Liu and Giovanni Marsella and Matthew McCullough and David McKeen and Patrick Meade and Caleb Miller and Gilad Mizrachi and O. G. Morales-Olivares and David Morrissey and Abdulrahman Ahmed Morsy and John Osborn and Gabriel Owh and Michalis Panagiotou and Mason Proffitt and Runze Ren and Steven H. Robertson and Mario Rodríguez-Cahuantzi and Heather Russell and Victoria Sánchez and Halil Saka and Mamoksh Samra and Rodney Schnarr and Jessie Shelton and Yiftah Silver and Daniel Stolarski and Martin A. Subieta Vasquez and Sanjay Kumar Swain and Steffie Ann Thayil and Brooks Thomas and Emma Torro and Yuhsin Tsai and Bennett Winnicky-Lewis and Igor Zolkin and Jose Zurita},
journal= {arXiv preprint arXiv:2503.20893},
year = {2025}
}
备注
71 pages, 28 figures, 5 tables