Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 79: Invited Topical Talks 5
T 79.3: Eingeladener Vortrag
Donnerstag, 7. März 2024, 15:00–15:30, Geb. 30.21: Gerthsen-HS
The LHCb Mighty Tracker - Getting ready for flavour physics at the HL-LHC — •Klaas Padeken — HISKP University Bonn
With Upgrade II of the LHCb Experiment (LS4 of the LHC 2033/2034) the instantaneous luminosity at Point 8 will be increased by an factor 10 to 1.5 × 1034 cm−2 s−1. This requires a redesign of the LHCb tracking system. For the downstream tracker a hybrid system of monolithic pixel sensors in the central part and scintillating fibers in the outer part is foreseen. The detector will cover a η region of 2 to 5, while keeping a triggerless streaming readout (at 40MHz) and improving the momentum resolution to σp/p ≈ 0.3%. The challenge is to keep the material budget for the pixel part, including all services, below 1 % X/X0 per layer, and to read out the fibres with an increased hit rate of up to 20 MHz/cm2. While the material budget can be reduced using monolithic sensors and a cooling solution, the latter part can only be solved by cooling the readout SiPMs to cryogenic temperatures.
This talk will give an overview of the LHCb Upgrade II plans and motivate the construction of a large scale state of the art hybrid detector, which will continue to add flavour to the physics program of the LHC.
Keywords: LHCb; Mighty Tracker; Silicon Pixel; MAPS