First measurement of the top quark pair production cross section in the dilepton 
channel with tau leptons in the final state in pp collisions at sqrt(s)=7~TeV

CMS Physics Analysis Summaries
Report number	CMS-PAS-TOP-11-006
Title	First measurement of the top quark pair production cross section in the dilepton channel with tau leptons in the final state in pp collisions at sqrt(s)=7~TeV
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	We present a measurement of the \ttbar production cross section in dilepton events with one muon and one hadronically decaying tau lepton from the decay $\ttbar\rightarrow (\mu\nu_\mu) (\tau_h \nu_\tau) b\bar{b}$. This is the first measurement of the \ttbar cross section explicitly including tau leptons in proton-proton collisions at $\sqrt{s}=7$~TeV. The data sample corresponds to an integrated luminosity of 1.09~fb$^{-1}$ collected by the CMS detector. The measured value $\sigma_{\ttbar} = 148.7 \pm 23.6({\rm stat.}) \pm 26.0({\rm syst.}) \pm 8.9 ({\rm lumi.})~{\rm pb}$ is consistent with predictions from the standard model.
Other source	Inspire
Related	superseded by: CERN-PH-EP-2012-078
Email contact: cms-pag-conveners-top@cern.ch Fulltext in PDF Figure_001 Figure_002-a Figure_002-b Figure_003-a Figure_003-b Figure_004 Figure_005-a Figure_005-b Figure_006 Figure_007-a Figure_007-b Additional information for the analysis (restricted access)