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Forward–backward asymmetry of Drell–Yan lepton pairs in pp collisions at √s = 7 TeV

Author(s)
Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Chan, M.; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Kim, Y.; Klute, Markus; Krajczar, Krisztian F.; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Stephans, George S. F.; Sung, Kevin Kai Hong; Velicanu, Dragos Alexandru; Wenger, Edward Allen; Wyslouch, Boleslaw; Yilmaz, Yetkin; Yoon, A. S.; Zanetti, Marco; Wolf, Roger; Xie, Si; Bauer, Gerry P; Dutta, Valentina; Luckey Jr, P David; Roland, Gunther M; Sumorok, Konstanty C; Yang, Mingming; Li, W.; Roland, Christof E; Rudolph, Matthew Scott; Stoeckli, Fabian; ... Show more Show less
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Abstract
A measurement of the forward–backward asymmetry (A[subscript FB]) of Drell–Yan lepton pairs in pp collisions at √s = 7 TeV is presented. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 5 fb[superscript −1]. The asymmetry is measured as a function of dilepton mass and rapidity in the dielectron and dimuon channels. Combined results from the two channels are presented, and are compared with the standard model predictions. The A[subscript FB] measurement in the dimuon channel and the combination of the two channels are the first such results obtained at a hadron collider. The measured asymmetries are consistent with the standard model predictions.
Date issued
2012-11
URI
http://hdl.handle.net/1721.1/90577
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. School of Science
Journal
Physics Letters B
Publisher
Elsevier
Citation
Chatrchyan, S., V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Forward–backward Asymmetry of Drell–Yan Lepton Pairs in Pp Collisions At.” Physics Letters B 718, no. 3 (January 2013): 752–772. © CERN for the benefit of the CMS Collaboration
Version: Final published version
ISSN
03702693

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