Abstract
The matching of next-to-leading order (NLO) QCD calculations to parton showers is the state of the art for precision predictions in LHC phenomenology. Following the POWHEG method, we extend this matching procedure to include NLO electroweak (EW) corrections within the Standard Model. The matching also implies a consistent treatment of photons, which can be emitted either as real radiation in the NLO calculation or as part of the parton-shower simulation which includes multiple photon emissions. Presenting the parton-level results in terms of events, the EW corrections can be employed in LHC analyses in a standard way by feeding them to a parton shower. The method has been applied to the Drell-Yan process, a standard candle at the LHC.
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