# Mainz 2014 – wissenschaftliches Programm

## Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

# T: Fachverband Teilchenphysik

## T 113: Elektroschwache Physik (Theorie) 2

### T 113.1: Vortrag

### Donnerstag, 27. März 2014, 16:45–17:00, P103

*W*^{+}*W*^{−}** production at high transverse momenta beyond NLO** — •Michael Rauch^{1}, Francisco Campanario^{2}, and Sebastian Sapeta^{3} — ^{1}Inst. f. Theoretical Physics, Karlsruhe Institute of Technology (KIT) — ^{2}Theory Division, IFIC, University of Valencia-CSIC — ^{3}Institute for Particle Physics Phenomenology, Durham University

Pair production of *W* gauge bosons is an important process at the LHC. It
enters many experimental measurements, both as a background, for example in
new-physics searches or the determination of Higgs properties, but also as a
signal process in precision studies and tests of the Standard Model.
Therefore, accurate predictions for this process are necessary to
exploit the full potential of the LHC.

Using the LoopSim method, we combine NLO QCD results for *WW* and
*WW*+jet as well as the loop-squared gluon-fusion contribution. These
are generated with VBFNLO and include leptonic decays of the *W* bosons
with finite-width and off-shell effects.

We find that the size of the additional corrections beyond NLO can be significant and well outside of the NLO error bands given by renormalization and factorization scale variation. Applying a jet veto, we observe further negative corrections, which we relate to the presence of large Sudakov logarithms.