Electroweak Precision Measurements with the ATLAS Detector
Résumé
With the high integrated luminosities recorded at the LHC and the very good understanding of the ATLAS detector, it is possible to measure electroweak observables to the highest precision. In this talk, we present the tau polarisation, measured in $Z\to \tau\tau$ using 20.3 fb$^{-1}$ of proton proton collision data collected at a centre of mass energy of 8 TeV. The talk also reviews the measurement of forward-background asymmetry based on the triple differential Drell-Yan cross-section obtained with the same data sample, which can be used to extract the weak mixing angle. We conclude with a presentation of the measurement of the $W$-boson mass using 4.6 fb$^{-1}$ data, collected at 7 TeV.
Mots clés
talk: Port Island 2018/04/16
p p: colliding beams
Z0: leptonic decay
tau: pair production
tau: polarization
p p: scattering
W: mass: measured
electroweak interaction
ATLAS
Drell-Yan process
differential cross section: measured
Weinberg angle
CERN LHC Coll
production: asymmetry
experimental results
7000 GeV-cms
8000 GeV-cms