ALPS seminar

Forward-Backward Asymmetry and the Weak Mixing Angle with e+e- Pairs in ATLAS

by Christoph Weinsheimer (Uni Mainz)

3a (DESY Hamburg)


DESY Hamburg

The electroweak unification includes the rotation of fundamental gauge boson states to the observed Z and \gamma bosons introducing the Weak Mixing Angle \sin^2 \theta_W as a free parameter of the standard model. An observable asymmetry arising from the parity violating nature of the weak force yields experimental access to this parameter. This talk describes a measurement of the forward-backward asymmetry and the succeeding extraction of the weak mixing angle in pp-Collisions at the ATLAS experiment using e^{+}e^{-} final states. The underlying dataset has been recorded in 2012 at \sqrt{s}= 8 TeV comprising a total integrated luminosity of 20.3 fb^{-1}.