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Precise top quark cross-section results at LHC
The measurements of the inclusive $t\bar{t}$ cross section is presented for proton-proton collisions recorded at $\sqrt{s}=$ 7 and 8 TeV by the ATLAS and the CMS experiments using the lepton+jets and the dilepton events. The most precise single measurement at 7 TeV is $\sigma_{t\bar{t}} = 161.9\pm2...
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Lenguaje: | eng |
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2013
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Acceso en línea: | http://cds.cern.ch/record/1516082 |
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author | Andrea, Jeremy |
author_facet | Andrea, Jeremy |
author_sort | Andrea, Jeremy |
collection | CERN |
description | The measurements of the inclusive $t\bar{t}$ cross section is presented for proton-proton collisions recorded at $\sqrt{s}=$ 7 and 8 TeV by the ATLAS and the CMS experiments using the lepton+jets and the dilepton events. The most precise single measurement at 7 TeV is $\sigma_{t\bar{t}} = 161.9\pm2.5$(stat.)$^{+5.1}_{-5.0}$(syst.)$\pm3.6$(lumi.)pb, using a luminosity of 2.3fb$^{-1}$. The measurements from the two experiments are also combined to reach higher precision. With a luminosity of about 1fb$^{-1}$, the combined cross-section is $\sigma_{t\bar{t}}$ = 173.3$\pm$2.3(stat.)$\pm$9.8(syst.)pb. At $\sqrt{s}=$8 TeV, $\sigma_{t\bar{t}}$ is measured in the lepton+jets and dilepton channels with the CMS detector and the corresponding combined measurement is $\sigma_{t\bar{t}} = 227\pm3$(stat.)$\pm11$(syst.)$\pm10$(lumi.)pb. |
id | cern-1516082 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2013 |
record_format | invenio |
spelling | cern-15160822019-09-30T06:29:59Zhttp://cds.cern.ch/record/1516082engAndrea, JeremyPrecise top quark cross-section results at LHCDetectors and Experimental TechniquesThe measurements of the inclusive $t\bar{t}$ cross section is presented for proton-proton collisions recorded at $\sqrt{s}=$ 7 and 8 TeV by the ATLAS and the CMS experiments using the lepton+jets and the dilepton events. The most precise single measurement at 7 TeV is $\sigma_{t\bar{t}} = 161.9\pm2.5$(stat.)$^{+5.1}_{-5.0}$(syst.)$\pm3.6$(lumi.)pb, using a luminosity of 2.3fb$^{-1}$. The measurements from the two experiments are also combined to reach higher precision. With a luminosity of about 1fb$^{-1}$, the combined cross-section is $\sigma_{t\bar{t}}$ = 173.3$\pm$2.3(stat.)$\pm$9.8(syst.)pb. At $\sqrt{s}=$8 TeV, $\sigma_{t\bar{t}}$ is measured in the lepton+jets and dilepton channels with the CMS detector and the corresponding combined measurement is $\sigma_{t\bar{t}} = 227\pm3$(stat.)$\pm11$(syst.)$\pm10$(lumi.)pb.CMS-CR-2013-032oai:cds.cern.ch:15160822013-01-29 |
spellingShingle | Detectors and Experimental Techniques Andrea, Jeremy Precise top quark cross-section results at LHC |
title | Precise top quark cross-section results at LHC |
title_full | Precise top quark cross-section results at LHC |
title_fullStr | Precise top quark cross-section results at LHC |
title_full_unstemmed | Precise top quark cross-section results at LHC |
title_short | Precise top quark cross-section results at LHC |
title_sort | precise top quark cross-section results at lhc |
topic | Detectors and Experimental Techniques |
url | http://cds.cern.ch/record/1516082 |
work_keys_str_mv | AT andreajeremy precisetopquarkcrosssectionresultsatlhc |