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Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 17: Elektroschwache Physik (Theorie)

T 17.8: Talk

Monday, March 9, 2015, 15:45–16:00, K.11.20 (K5)

Next-to-leading order electroweak corrections to ppW+W → 4 leptons at the LHCMarina Billoni1, Stefan Dittmaier2, Barbara Jäger1, and •Lukas Salfelder11Eberhard 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 ppW+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.

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