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Measurement of the low-mass Drell-Yan differential cross section at √s = 7 TeV using the ATLAS detector

Contributors

ATLAS Collaboration

Collaborators

Alexandre, Gauthier; Barone, Gaetano; Bell, Paul; Bell, William; Benhar Noccioli, Eleonora; Bilbao De Mendizabal, Javier; Bucci, Francesca; Camacho Toro, Reina; Clark, Allan Geoffrey; Delitzsch, Chris Malena; Della Volpe, Domenico; Doglioni, Caterina; Ferrere, Didier; Gadomski, Szymon; Gonzalez Sevilla, Sergio; Goulette, Marc; Gramling, Johanna Léna; Guescini, Francesco; Iacobucci, Giuseppe; Katre, Akshay; La Rosa, Alessandro; Mermod, Philippe; Miucci, Antonio; Muenstermann, Daniel; Nektarijevic, Snezana; Nikolics, Katalin; Pásztor, G.; Picazio, Attilio; Pohl, Martin; Rosbach, Kilian; Vallecorsa, Sofia; Wu, Xin

Published in

The journal of high energy physics, vol. 1406, p. 112-158

Collection

  • Open Access - SCOAP3

Publication date

2014

Abstract

The differential cross section for the process Z / γ ∗ → ℓℓ ( ℓ = e, μ ) as a function of dilepton invariant mass is measured in pp collisions at √s = 7 TeV at the LHC using the ATLAS detector. The measurement is performed in the e and μ channels for invariant masses between 26 GeV and 66 GeV using an integrated luminosity of 1 . 6 fb −1 collected in 2011 and these measurements are combined. The analysis is extended to invariant masses as low as 12 GeV in the muon channel using 35 pb −1 of data collected in 2010. The cross sections are determined within fiducial acceptance regions and corrections to extrapolate the measurements to the full kinematic range are provided. Next-to-next-to-leading-order QCD predictions provide a significantly better description of the results than next-to-leading-order QCD calculations, unless the latter are matched to a parton shower calculation.

Keywords

  • Hadron-Hadron Scattering

UNIGE affiliation entities

Citation (ISO format)

ATLAS Collaboration. Measurement of the low-mass Drell-Yan differential cross section at √s = 7 TeV using the ATLAS detector. In: The journal of high energy physics, 2014, vol. 1406, p. 112–158. doi: 10.1007/JHEP06(2014)112

Main files (1)

Article (Published version)
CC BY

Identifiers

Journal ISSN

1029-8479
490views
197downloads

Technical informations

Creation

27/04/2015 10:31:26

First validation

27/04/2015 10:31:26

Update

13/10/2025 21:31:02

Status update

14/03/2023 23:13:32

Last indexation

10/11/2026 17:17:41
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