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 4.9fb-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<1500GeV, for a fiducial region in which both the electron and the positron have transverse momentum pT>25GeV 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.
Measurement of the high-mass Drell-Yan differential cross-section in pp collisions at s=7TeV with the ATLAS detector
BARBERIS, DARIO;CASO, CARLO;COCCARO, ANDREA;FAVARETO, ANDREA;FERRETTO PARODI, ANDREA;GAGLIARDI, GUIDO;GUIDO, ELISA;OSCULATI, BIANCA MARIA;PARODI, FABRIZIO;SCHIAVI, CARLO;
2013-01-01
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 4.9fb-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 116File in questo prodotto:
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