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Measurement of the high-mass Drell--Yan differential cross-section in pp collisions at $s$=7 TeV with the ATLAS detector

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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<mark>Journal publication date</mark>1/10/2013
<mark>Journal</mark>Physics Letters B
Issue number4-5
Volume725
Number of pages20
Pages (from-to)223-242
Publication StatusPublished
<mark>Original language</mark>English

Abstract

This Letter reports a measurement of the high-mass Drell–Yan differential cross-section in proton–proton collisions at a centre-of-mass energy of 7 TeV at the LHC. Based on an integrated luminosity of 4.9 fb−1, the differential cross-section in the Z/γ⁎→e+e− channel is measured with the ATLAS detector as a function of the invariant mass, mee, in the range 116<mee<1500 GeV, for a fiducial region in which both the electron and the positron have transverse momentum pT>25 GeV and pseudorapidity |η|<2.5. A comparison is made to various event generators and to the predictions of perturbative QCD calculations at next-to-next-to-leading order.

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This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.