Measurement of the Top-antitop Production Cross Section in pp Collisions at sqrt(s)=7 TeV using the Kinematic Properties of Events with Leptons and Jets
Journal Article
·
· European Physical Journal. C, Particles and Fields
- Yerevan Physics Inst. (Armenia)
A measurement of the top-antitop production cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV has been performed at the LHC with the CMS detector. The analysis uses a data sample corresponding to an integrated luminosity of 36 inverse picobarns and is based on the reconstruction of the final state with one isolated, high transverse-momentum electron or muon and three or more hadronic jets. The kinematic properties of the events are used to separate the top-antitop signal from W+jets and QCD multijet background events. The measured cross section is 173 + 39 - 32 (stat. + syst.) pb, consistent with standard model expectations.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS Collaboration
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1155751
- Report Number(s):
- FERMILAB-PUB-11-728-CMS; CERN-PH-EP-2011-060; arXiv eprint number arXiv:1106.0902
- Journal Information:
- European Physical Journal. C, Particles and Fields, Vol. 71, Issue 9; ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
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