Measurement of the high-mass Drell–Yan differential cross-section in pp collisions at √s=7 TeV with the ATLAS detector
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چکیده
Article history: Received 17 May 2013 Received in revised form 23 July 2013 Accepted 24 July 2013 Available online 1 August 2013 Editor: W.-D. Schlatter 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 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. © 2013 CERN. Published by Elsevier B.V. All rights reserved.
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