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Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 88: Detector Systems III

T 88.3: Talk

Thursday, March 18, 2021, 16:30–16:45, Tm

The LumiTracker detectorJohannes Albrecht, •Elena Dall’Occo, David Rolf, and Dirk Wiedner — Experimentelle Physik 5, TU Dortmund

The LumiTracker is a newly proposed detector upstream of the LHCb interaction point. It consists of a mini telescope based on silicon pixel detectors with the main goals of providing a real-time estimate of luminosity and contributing to its offline measurement. The luminosity measurement is based on reconstructing and counting tracks, exploiting the linearity with luminosity. Simulation studies show that a precision of 1% is achievable over an integration time of 5 seconds for an average number of pp interactions per bunch crossing of 7.6. In addition, such a solution would allow to measure the longitudinal profile of the luminous region with an expected resolution per track of a few millimetres.

In this talk, the feasibility studies, the LumiTracker projected performance and the detector specifications within the global framework of the LHCb detector are presented.

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