Measurement of the $$ \mathrm{t}\overline{\mathrm{t}} $$ production cross section in the dilepton channel in pp collisions at $$ \sqrt{s}=7 $$ TeV
Journal Article
·
· Journal of High Energy Physics (Online)
The t t-bar production cross section (sigma[t t-bar]) is measured in proton-proton collisions at sqrt(s) = 7 TeV in data collected by the CMS experiment, corresponding to an integrated luminosity of 2.3 inverse femtobarns. The measurement is performed in events with two leptons (electrons or muons) in the final state, at least two jets identified as jets originating from b quarks, and the presence of an imbalance in transverse momentum. The measured value of sigma[t t-bar] for a top-quark mass of 172.5 GeV is 161.9 +/- 2.5 (stat.) +5.1/-5.0 (syst.) +/- 3.6(lumi.) pb, consistent with the prediction of the standard model.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- The CMS collaboration
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1406545
- Report Number(s):
- FERMILAB-PUB-12-743-CMS; CMS-TOP-11-005; CERN-PH-EP-2012-224; arXiv:1208.2671; 1127335
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2012, Issue 11; ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
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