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T: Fachverband Teilchenphysik

T 113: Elektroschwache Physik (Theorie) 2

T 113.5: Vortrag

Donnerstag, 27. März 2014, 17:45–18:00, P103

NLO QCD and EW corrections to W γ production at the LHC — Stefan Dittmaier and •Markus Hecht — Physikalisches Institut, Albert-Ludwigs-Universität Freiburg

We present a full NLO calculation for W γ production at the LHC including the decay and all off-shell effects of the W boson as well as photon-induced contributions. The NLO electroweak corrections are evaluated using an extension of the dipole subtraction formalism to non-collinear-safe observables which, e.g., is needed for a proper treatment of muons in the final state. In order to separate hard photons from jets in collinear configurations, we cluster photons and partons democratically and use a quark-to-photon fragmentation function à la Glover and Morgan. We provide numerical results for several distributions and analyze the impact of the different types of corrections. Finally we investigate how anomalous couplings could influence these distributions.