Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 34: Data, AI, Computing, Electronics IV (DAQ, Detector Electronics)

T 34.8: Vortrag

Dienstag, 1. April 2025, 18:00–18:15, VG 2.102

Development of a standalone drift-tube-based muon trigger for the ATLAS and CRESST experiments — D Cieri, •S Eder, O Kortner, S Kortner, A Langenkämper, M Mancuso, and F Petricca — Max Planck Institut für Physik, Garching, Germany

To operate the ATLAS experiment in the high-rate environment of the High-Luminosity Large Hadron Collider (HL-LHC), significantly improved selectivity of the first-level muon trigger is required. To achieve this, novel FPGA-based Monitored Drift Tube (MDT) trigger processor boards have been developed. These boards incorporate muon tracking information from precision MDT chambers into the first-level trigger processing chain for the first time. The new MDT chamber read-out and trigger processors must be commissioned using cosmic ray muons, necessitating the development of a dedicated muon track-finding algorithm that utilizes only information from drift-tube detectors.

This algorithm could potentially also be used to build a muon veto trigger for the CRESST experiment at Gran Sasso. The proposed experimental setup involves placing several spare MDT chambers from the ATLAS experiment around the cryogenic crystals of the CRESST detector. Events with cosmic muon tracks can then be vetoed if the signal in the crystals matches the signal from the MDT chambers, significantly reducing the experiment's output bandwidth.

In this talk, a dedicated standalone drift-tube-based muon trigger algorithm will be presented, along with its implementation in the FPGA firmware.

Keywords: FPGA; Hardware-Trigger; ATLAS; CRESST