Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 62: Standard model 2 (electroweak/bosons)
T 62.7: Vortrag
Mittwoch, 6. März 2024, 17:30–17:45, Geb. 30.23: 2/0
Towards a measurement of the Z boson mass in proton-proton collisions with the ATLAS experiment — •Dionysios Fakoudis1,2, Stefan Tapprogge1, and Emilien Chapon2 — 1Institute of Physics, Johannes Gutenberg University, Mainz, Germany — 2CEA,Paris,France
The precise measurement of the Z boson mass is an important foundation of the Standard Model. This talk presents an analysis of the challenges encountered in the Z boson mass measurement using ATLAS data having recorded about 108 Z boson decays to µ+ µ− in proton - proton collisions at 13 TeV centre-of-mass energy. Di-muon final states are considered and specific emphasis is given to the associated uncertainties. To allow a precision determination of Z boson mass an excellent understanding of the detection and the measurement of the muon kinematics is required, therefore the focus is on the crucial aspect of calibration. The presentation delves into the intricacies of calibration techniques, exploring the methods employed, their efficacy, and the challenges associated with achieving the desired precision.
Keywords: Z Mass; ATLAS; Precision Physics