Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 5: Methods in particle physics 1 (e/gamma, SciFi)

T 5.7: Talk

Monday, March 4, 2024, 17:30–17:45, Geb. 20.30: 2.066

Concept for a Cryogenic SciFi Detector for the LHCb Upgrade II — David Fehr, •Thomas Oeser, Stefan Schael, Thorsten Siedenburg, and Michael Wlochal — I. Physikalisches Institut B, RWTH Aachen

The Upgrade II of the LHCb detector at the Large Hadron Collider (LHC), scheduled to be installed during Long Shutdown 4, is intended to prepare the detector for the challenging environment of the High Luminosity LHC, operating at luminosities of around 1.5×10³⁴ cm⁻²s⁻¹ with the aim of integrating ∼300 fb⁻¹ of collision data through its lifetime.
A central part of Upgrade II is the Mighty Tracker, which comprises an inner silicon pixel tracker around the beam pipe and an outer Scintillating-Fibre (SciFi) tracker. The readout silicon photomultipliers of the SciFi tracker are cooled to cryogenic temperatures, significantly reducing the dark count rate and ensuring a high hit efficiency at larger luminosities.
This talk presents a concept for a cryogenic SciFi tracker, focussing on the realisation of the cooling system and its coupling to the readout electronics.

Keywords: LHCb; Upgrade; Fibre Tracker