TY  - JOUR
A1  - Biedermann, B.
A1  - Billoni, M.
A1  - Denner, A.
A1  - Dittmaier, S.
A1  - Hofer, L.
A1  - Jäger, B.
A1  - Salfelder, L.
T1  - Next-to-leading-order electroweak corrections to pp -> W\(^{+}\)W\(^{-}\) -> 4 leptons at the LHC
T2  - JOURNAL OF HIGH ENERGY PHYSICS
N2  - We present results of the first calculation of next-to-leading-order electroweak corrections to W-boson pair production at the LHC that fully takes into account leptonic W-boson decays and off-shell effects. Employing realistic event selections, we discuss the corrections in situations that are typical for the study of W-boson pairs as a signal process or of Higgs-boson decays H → WW∗, to which W-boson pair production represents an irreducible background. In particular, we compare the full off-shell results, obtained treating the W-boson resonances in the complex-mass scheme, to previous results in the so-called double-pole approximation, which is based on an expansion of the loop amplitudes about the W resonance poles. At small and intermediate scales, i.e. in particular in angular and rapidity distributions, the two approaches show the expected agreement at the level of fractions of a percent, but larger differences appear in the TeV range. For transverse-momentum distributions, the differences can even exceed the 10% level in the TeV range where “background diagrams” with one instead of two resonant W bosons gain in importance because of recoil effects.
KW  - NLO Computations
KW  - W-boson
KW  - LHC
Y1  - 2016
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/16779
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-167790
VL  - 06
IS  - 065
ER  -