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T: Fachverband Teilchenphysik

T 55: Silicon Detectors VI

T 55.1: Talk

Wednesday, March 18, 2026, 16:15–16:30, KH 01.022

Simulation and development of the Mighty-Tracker for LHCb Upgrade II — Johannes Albrecht, Dominik Mitzel, •Donata Osthues, Dirk Wiedner, and Lukas Witola — TU Dortmund University, Dortmund, Germany

During the High-Luminosity LHC period, the LHCb detector will be operated at a significantly higher instantaneous luminosity compared to Run 3.

To adapt to higher radiation levels and hit occupancies, the LHCb detector will undergo a second upgrade. The SciFi tracker will be replaced by the Mighty-Tracker, comprised of scintillating fibres in the outer region and silicon pixel sensors in the region closest to the beam pipe. The MightyPix modules are currently under development; the module design, serial powering and cooling solutions must be determined.

Simulation studies are a crucial input to these developments. This talk presents material budget scans, tracking efficiency calculations and momentum resolution results using a detailed detector geometry simulation based on the latest Mighty-Tracker design.

Keywords: LHCb; Mighty-Tracker; Simulation