Neutral-current Drell–Yan with combined QCD and electroweak corrections in the POWHEG BOX
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Following recent work on the combination of electroweak and strong radiative corrections to single W-boson hadroproduction in the POWHEG BOX framework, we generalize the above treatment to cover the neutral-current Drell–Yan process. According to the POWHEG method, we combine both the next-to-leading order (NLO) electroweak and the QED multiple photon corrections with the native NLO and Parton Shower QCD contributions. We show comparisons with the predictions of the electroweak generator HORACE, to validate the reliability and accuracy of the approach. We also present phenomenological results obtained with the new tool for physics studies at the LHC.
KeywordsParton Shower Lead Logarithmic Real Radiation Matrix Element PYTHIA Version Parton Shower Generator
We are grateful to various colleagues of the LHC and Tevatron communities for interest in our work and many useful discussions. This work was supported in part by the Research Executive Agency (REA) of the European Union under the Grant Agreement number PITN-GA-2010-264564 (LHCPhenoNet), and by the Italian Ministry of University and Research under the PRIN program 2010-2011. The work of L.B. is supported by the ERC grant 291377, “LHCtheory—Theoretical predictions and analyses of LHC physics: advancing the precision frontier”. F.P. would like to thank the CERN PH-TH Department for partial support and hospitality during several stages of the work.
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