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Measurement of the high-mass Drell-Yan differential cross-section in pp collisions at sqrt{s} =7 TeV with the ATLAS detector
This note 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/gamma* -> e+e- channel as a function of the di-e...
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Lenguaje: | eng |
Publicado: |
2012
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1493623 |
Sumario: | This note 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/gamma* -> e+e- channel as a function of the di-electron invariant mass, mee, is measured in the range 116 < mee < 1500 GeV, for a fiducial region in which both electrons have pT > 25 GeV and |eta| < 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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