SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 6: Other Exp., EW
T 6.3: Vortrag
Montag, 20. März 2023, 17:00–17:15, HSZ/0103
Muon Momentum Calibration in ATLAS experiment — •Dionysios Fakoudis1 and Stefan Tapprogge2 for the ATLAS collaboration — 1Johannes Gutenberg University, Mainz, Germany — 2Johannes Gutenberg University, Mainz, Germany
In this contribution the momentum calibration of (anti-)muons for the ATLAS detector will be discussed. Precise measurements of the W and Z boson mass using the data from the full Run2 of LHC provide new challengeS for an even more accurate muon calibration. Firstly the overall method with the constraints, the systematics and the limits of the current calibration will be presented. The muon calibration scheme provides tools for reconstructed muons using information from the Inner Detector or the Muon Spectrometer and also using the so called combined muons, by comparing Monte Carlo generated events with ATLAS data using the well known 'standard candles' J/Psi and Z. Some of the major issues are going to be discussed (for example the extrapolation from the kinematic region of the J/Psi to the Z region) as well as their possible impact on precision measurements. Current solutions and further challenges will be presented.