17-24 July 2013
KTH and Stockholm University Campus
Europe/Stockholm timezone

Electroweak measurements from W and Z/gamma* properties with the ATLAS detector

18 Jul 2013, 09:00
20m
F2 (KTH Campus)

F2

KTH Campus

Talk presentation Top and Electroweak Physics Top and Electroweak Physics

Speaker

Massimiliano Bellomo (CERN)

Description

W and Z boson production have been measured in the electron, muon and tau decay channels. Total and differential cross sections, defined in terms of the decay lepton kinematics, have been measured as a function of rapidity and transverse momentum. Precise measurements of W and Z production, including the polarisations of W bosons and of tau leptons produced in W decays are presented. They provide tests of lepton universality and constrain electroweak parameters. A measurement of the forwardbackward asymmetry for the neutral current Drell Yan process is also presented. The asymmetry is measured using dielectron and dimuon final states. For the dielectron channel, the measurement includes electrons detected in the forward calorimeter which extends the covered phase space to the region less sensitive to the PDF uncertainties. The result is then used to extract a measurement of the effective weak mixing angle.

Primary author

Prof. Mark Oreglia (University of Chicago (US))

Presentation Materials