Wuppertal 2015 – wissenschaftliches Programm
T 17.8: Vortrag
Montag, 9. März 2015, 15:45–16:00, K.11.20 (K5)
Next-to-leading order electroweak corrections to pp → W+W− → 4 leptons at the LHC — Marina Billoni1, Stefan Dittmaier2, Barbara Jäger1, and •Lukas Salfelder1 — 1Eberhard Karls Universität Tübingen — 2Albert-Ludwigs-Universität Freiburg
Weak boson pair production processes are very sensitive to the gauge structure of the electroweak (EW) Standard Model. Although the effect of EW corrections on total cross sections is typically much smaller than of QCD corrections, in certain regions of phase space EW corrections lead to a significant reduction of the cross section. Providing both types of corrections for weak boson pair production processes in a fully differential form is therefore essential for further experimental precision tests of the SM.
In this talk we present a calculation of the next-to-leading order EW corrections to the process pp → W+W− → νµ µ+ e− ν_e at the LHC. Off- shell effects of the W bosons as well as non-resonant contributions are included. For a realistic event-selection setup we present numerical results and discuss the effect of the EW corrections by means of several differential distributions, such as transverse momenta or invariant masses of the final state leptons.