Measurement of the tt̄ production cross section and the top quark mass in the dilepton channel in pp collisions at √ s = 7 TeV
Author(s)
Alver, Burak Han; Bauer, Gerry P; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, I. A.; Chan, M.; Dutta, Valentina; Everaerts, Pieter Bruno Bart; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, K.A.; Harris, Philip; Kim, Y.; Klute, Markus; Lee, Y.-J.; Li, W.; Loizides, Constantinos; Luckey Jr, P David; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, D.; Roland, Cristof; Roland, Gunther; Rudolph, Matthew Scott; Stephans, George S. F.; Stockli, Fabian; Sumorok, Konstanty C; Sung, K.; Wenger, Edward Allen; Xie, Si; Yang, M.; Yilmaz, Y.; Yoon, A.S.; Zanetti, Marco; ... Show more Show less
DownloadPublished version (734.7Kb)
Terms of use
Metadata
Show full item recordAbstract
The t (t) over bar production cross section and top quark mass are measured in proton-proton collisions at root s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb(-1) collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is sigma(tt) - 168 +/- 18 (stat:) +/- 14 (syst:) +/- 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass m(top) is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m(top) = 175.5 +/- 4.6 (stat:) +/- 4: 6 (syst:) GeV/c(2). ; ACHI S, 1995, V74, P2632 ; E F, 1995, V74, P2626
Date issued
2011-07Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. Department of PhysicsPublisher
Springer Nature