Erlangen 2026 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 49: Electronics, Trigger, DAQ II

T 49.8: Vortrag

Mittwoch, 18. März 2026, 18:00–18:15, KH 00.023

Front-End Readout for the LHCb Migthy SciFi Tracker — Carlos Garcia Argos, Marco Gersabeck, •Michael Lupberger, Santiago Ochoa, Ksenia Solovieva, and Jan Sorokovski — Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany

During CERN's Long Shutdown 4, several sub-detectors of the LHCb experiment will be replaced. This upgrade is required to cope with the further increase in instantaneous luminosity and with the radiation that will accumulate until the end of the experiment's lifetime.

One of these is the tracker located downstream of the spectrometer magnet. The current tracking detector is based on Scintillating Fibres (SciFi). It will be replaced by a hybrid detector, called Mighty Tracker, that combines HV-CMOS MAPS in the central region near the beam pipe and new SciFi modules in the outer part. The latter will be read out using Silicon Photomultipliers operated at cryogenic temperatures. Their signals will be processed by a front-end chip, which is controlled and read out by lpGBT chips. The readout board is housed in a metal box that serves cooling and shielding.

This contribution presents the current status of the front-end readout. It focuses on the key requirements and on how the design aims to satisfy them.

Keywords: LHCb; Migthy Tracker; Readout; Front-end