Speaker
Description
"The precision measurement of the W boson mass with the ATLAS experiment represents a meticulous test of the Standard Model of particle physics. During the LHC Run 2, pileup reached a peak of 60 interactions per bunch-crossing; this analysis, however, uses low-pileup data to improve the estimation of the transverse recoil, essential for an accurate MET measurement. This W boson mass measurement is done using both the $p_{T}$ of the lepton and the transverse mass of the lepton-neutrino system.
The treatment of the electroweak modeling will be presented, including higher-order electroweak corrections and associated electroweak uncertainties. Assessment of the muon performance using J/ψ events will also be discussed, as well as recoil calibration for MiNNLOPS samples and fit studies.
This analysis complements the previous ATLAS Run 1 results, being more sensitive in the $m_{T}$ measurement."