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Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 85: Silicon Strip Detectors II

T 85.7: Vortrag

Donnerstag, 18. März 2021, 17:30–17:45, Tj

Beam test with the final readout scheme of Phase-2 CMS Outer Tracker 2S prototype modules — •Christian Dziwok2, Lutz Feld1, Katja Klein1, Martin Lipinski1, Alexander Pauls1, Oliver Pooth2, Nicolas Röwert1, and Tim Ziemons21I. Physikalisches Institut B, RWTH Aachen University — 2III. Physikalisches Institut B, RWTH Aachen University

For the upcoming Phase-2 Upgrade for the operation of CMS at the HL-LHC a new silicon tracker design will be implemented. With extended acceptance and giving additional input of track pT to the level-1 trigger, the new Outer Tracker will consist of 2S modules with two co-planar strip sensors and PS modules with a macro-pixel sensor and a strip sensor. Therefore, for these specialized detector modules the pT information of a track is already available online. Based on cluster size and position in a module’s sensors and its sensor spacing, a first pT trigger information is generated in its front-end ASIC and then constantly streamed to the back end at bunch crossing rate.

The final front-end ASIC CBC 3.1 was used alongside the concentrator ASIC CIC v1 and the serializer- and slow control ASICs GBTx and SCA without additional interface card for the first time. This final readout scheme of 2S modules has been tested with two modules at once at the test beam facility of DESY Hamburg using a 4 GeV electron beam and the DATURA telescope. This talk will showcase the efficiency of the new pT discrimination mechanism and the test on synchronicity of modules.

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