Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 97: Drell-Yan and jet production

T 97.6: Vortrag

Freitag, 3. April 2020, 12:15–12:30, H-HS XI

Cross section ratios of Z+jet over dijet productionThomas Berger1, Günter Quast1, Klaus Rabbertz1, Daniel Savoiu1, •Bettina Schillinger1,2, and Mikko Voutilainen21Karlsruhe Institute of Technology — 2Helsinki Institute of Physics

In this analysis we investigate a ratio of cross sections, which promises to profit from reduced uncertainties.
As the first cross section we choose the inclusive dijet cross section, because the abundant production of jets at the Large Hadron Collider offers the opportunity to investigate this observable in a wide kinematic range. As the second observable we consider the Z+jet cross section. The production of Z bosons in association with jets provides a clear signal, especially due to the fact that the decay of the Z boson into two muons can be measured precisely with the CMS detector.
Since the partonic production channels differ between dijet and Z+jet production, interesting insights might be obtained when comparing these processes.
The presented measurement is carried out triple-differentially in phase space and it is based on data collected with the CMS detector in 2018.

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