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Precision electroweak calculation of the production of a high transverse-momentum lepton pair at hadron colliders

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Published 31 October 2007 • Published under licence by IOP Publishing Ltd
, , Citation Carlo M. Carloni Calame et al JHEP10(2007)109 DOI 10.1088/1126-6708/2007/10/109

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Author affiliations

1 CERN, Physics Department, TH Unit, 1211 Geneva, Switzerland

2 Dipartimento di Fisica Nucleare e Teorica, Università di Pavia and INFN, Sezione di Pavia, Via A.Bassi 6, I-27100 Pavia, Italy

3 INFN, Sezione di Pavia, Via A.Bassi 6, I-27100 Pavia, Italy

4 Dipartimento di Fisica, Università degli Studi di Milano and INFN, Sezione di Milano, Via Celoria 16, I-20133 Milano, Italy

Dates

  1. Received 10 October 2007
  2. Accepted 22 October 2007
  3. Published

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1126-6708/2007/10/109

Abstract

We present a detailed study of the production of a high transverse-momentum lepton pair at hadron colliders, which includes the exact Script O(α) electroweak corrections properly matched with leading logarithmic effects due to multiple photon emission, as required by the experiments at the Fermilab Tevatron and the CERN LHC. Numerical results for the relevant observables of single Z-boson production at hadron colliders are presented. The impact of the radiative corrections is discussed in detail. The presence in the proton of a photon density is considered and the effects of the photon-induced partonic subprocesses are analyzed. The calculation has been implemented in the new version of the event generator HORACE, which is available for precision simulations of the neutral and charged current Drell-Yan processes.

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10.1088/1126-6708/2007/10/109