Measurement of the $$\mathrm{t}\bar{\mathrm{t}}$$ production cross section in the τ+jets channel in pp collisions at $$\sqrt{s}=7\ \mbox{TeV}$$
Journal Article
·
· European Physical Journal. C, Particles and Fields
The top-quark pair production cross section in 7 TeV center-of-mass energy proton–proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet identified as a hadronically decaying τ lepton and at least four additional energetic jets, at least one of which is identified as coming from a b quark. The analyzed data sample corresponds to an integrated luminosity of 3.9 fb-1 recorded by a dedicated multijet plus hadronically decaying τ trigger. A neural network has been developed to separate the top-quark pairs from the W+jets and multijet backgrounds. The measured value of is consistent with the standard model predictions.
- 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:
- 1405091
- Report Number(s):
- FERMILAB-PUB-13-183-CMS; CMS-TOP-11-004; CERN-PH-EP-2012-374; arXiv:1301.5755; 1216035
- Journal Information:
- European Physical Journal. C, Particles and Fields, Vol. 73, Issue 4; ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
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