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arXiv · 2611.03369

Fast Self-Triggering and Segment-Fitting of Cosmic Muons with a small-Diameter Monitored Drift Tube Detector

Shuzhe Li·Yuxiang Guo·Jiajin Ge·Chihao Li·Bing Zhou·Junjie Zhu
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Abstract

We present a fast self-triggering and segment-fitting algorithm that identifies cosmic muons and reconstructs their directions using a small-diameter Monitored Drift Tube (sMDT) chamber without an external trigger detector. The muon arrival time is determined using a Legendre-based algorithm combined with coarse- and fine-grid searches. We implement the algorithm in FPGA firmware on an ATLAS MDT miniDAQ board and evaluate its efficiency, resolution, and latency. The results demonstrate standalone sMDT triggering and trigger-level reconstruction of muon directions, providing a solution for chamber commissioning and potentially MDT-based triggers for charged massive stable particle searches at the High Luminosity-LHC.

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Shuzhe Li, Yuxiang Guo, Jiajin Ge, Chihao Li, Bing Zhou, Junjie Zhu. 2026-11-02. Fast Self-Triggering and Segment-Fitting of Cosmic Muons with a small-Diameter Monitored Drift Tube Detector. https://arxiv.org/abs/2611.03369

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