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

By C. Calame, G. Montagna, O. Nicrosini, Alessandro Vicini. 2007

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We present a detailed study of the production of a high transverse-momentum lepton pair at hadron colliders, which includes the exact (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.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a39b2ed0adb6e4a103f09b4b553b6bb9fb4c6293

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In Nuclear and High Energy Physics

Citations in the corpus

ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s=7 TeV (2012, methodology): “Instead of the LO cross section values, the NNLO electroweak-corrected cross section values [57, 61–63] calculated using the MSTW2008 PDF [64], are used in this analysis.”
Parton distributions for the LHC run II (2014, methodology): “The NLO EW one-loop corrections are known [126–131] and have been implemented in several public codes such as HORACE [126] and ZGRAD2 [130, 131].”
Measurement of the Z/ѵ* boson transverse momentum distribution in pp collisions at √s = 7 TeV with the ATLAS detector (2014, methodology): “Photon-induced dilepton production, i.e. the double dissociative process q ¯ q → + ` − and inelastic photon-induced pp → + ` − , is simulated using Horace [39] and Herwig++ [40], inter-faced to the MRST2004qed PDFs [41].”
Parton distributions from high-precision collider data (2017, methodology): “ with the corresponding PDF uncertainty band. All calculations (including ABMP16) are performed with s = 0:118. Electroweak NLO corrections are computed with FEWZ for Z production, and with HORACE3.2 [141] for Wproduction. The ducial phase space for the W cross-section measurement in ATLAS is by pl ”
Les Houches 2013: Physics at TeV Colliders: Standard Model Working Group Report (2014, unknown): “Recently discussed examples for enhanced photon-induced contributions are the channels γγ → l+l− [96, 126, 154] and γγ → W+W− [105–108], where the γγ channels comprise more than 10% in certain regions of phase space.”
The Structure of the Proton in the LHC Precision Era (2017, methodology): “For instance, EW corrections to inclusive gauge boson production are available in programs such as FEWZ [298, 299] and HORACE [304].”
NLO QCD+EW predictions for V + jets including off-shell vector-boson decays and multijet merging (2015, result): “The observed shape of the EW corrections is qualitatively very similar to the well-known NLO EW corrections to neutral-current DrellYan production [90, 91].”
Electroweak corrections to dilepton + jet production at hadron colliders (2011, background): “The NLO EW corrections are known for the charged-current [30–34] as well as the neutral-current process [35–40] and the predictions have been refined in various ways, e.”