W^+W^+jj at NLO in QCD: an exotic Standard Model signature at the LHC

Abstract

The process $pp\to W^{+}{W}^{+}jj$ gives rise to an exotic Standard Model signature at the LHC, involving high-$p_{\perp }$ like-sign leptons, missing energy and jets. In this brief article the motivation for study, along with selected results from the computation of NLO QCD corrections to the QCD-mediated part of this process\cite{us} are presented. It is shown that the corrections reduce the dependence of the cross-section on renormalisation and factorisation scales, and produce a relatively hard third jet in a significant fraction of events.

Comments: Talk given at 46th Rencontres de Moriond (QCD Session), La Thuile, March 20-27, 2011