Measurement of the top quark pair production cross section in pp collisions at sqrt(s) = 7 TeV in dilepton final states containing a tau
Journal Article
·
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
- Yerevan Physics Inst. (Armenia)
The top quark pair production cross section is measured in dilepton events with one electron or muon, and one hadronically decaying tau lepton from the decay t anti-t to (l nu(l)) (tau nu(tau)) b anti-b, where l can be either an electron or a muon. The data sample corresponds to an integrated luminosity of 2.0 inverse femtobarns for the electron channel and 2.2 inverse femtobarns for the muon channel, collected by the CMS detector at the LHC. This is the first measurement of the t anti-t cross section explicitly including tau leptons in proton-proton collisions at sqrt(s)=7 TeV. The measured value sigma(t anti-t) = 143 +/- 14 (stat.) +/- 22 (syst.) +/- 3 (lumi.) pb is consistent with the standard model predictions.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Organization:
- CMS Collaboration
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1155784
- Report Number(s):
- FERMILAB-PUB-12-692-CMS; CMS-TOP-11-006; CERN-PH-EP-2012-078; arXiv eprint number arXiv:1203.6810
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 11 Vol. 85; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
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