Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 67: Detektorsysteme III

T 67.2: Talk

Wednesday, March 27, 2019, 16:15–16:30, S03

Cross detector stability and linearity uncertainty for the integrated luminosity measurement in 2015 and 2016 in the CMS detector. — Olaf Behnke, Joscha Knolle, Andreas Meyer, and •Rafael Sosa — CMS - DESY Hamburg

The integrated luminosity recorded and measured by the CMS Experiment establishes the reference for cross section measurements of physics processes and the sensitivity reach of searches for new physics. The stability and linearity of the detectors used to measure the luminosity play an important role in the uncertainty estimation for the integrated luminosity value.

During the 2015 and 2016 data taking period, the Pixel Cluster Counting (PCC) was the primary offline luminometer, but also other detectors like the Drift Tubes (DT) and the HF (Forward Hadronic Calorimeter) provided luminosity measurements that can be used either for comparison or even to replace the PCC as the reference in some cases. The procedure and results on the cross detector stability and linearity between these detectors will be presented as well as the impact on the integrated luminosity uncertainty.