Measurement of the cross section for top-quark pair production in pp collisions at √s = 7 TeV with the ATLAS detector using final states with two high-pT leptons
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| Publication date | 2012 |
| Journal | The Journal of High Energy Physics |
| Article number | 59 |
| Volume | Issue number | 2012 | 5 |
| Number of pages | 34 |
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| Abstract |
A measurement is reported of the production cross section of top-quark pairs (tt¯) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the LHC. Candidate events have a signature consistent with containing two isolated leptons, large missing transverse momentum, and at least two jets. Using a data sample corresponding to an integrated luminosity of 0.70 fb−1, a tt¯ production cross section σtt¯= 176 ± 5(stat.) +14−11(syst.) ± 8(lum.) pb is measured for an assumed top-quark mass of mt = 172.5 GeV. This measurement is in good agreement with Standard Model predictions.
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| Document type | Article |
| Note | ATLAS collaboration |
| Language | English |
| Published at | https://doi.org/10.1007/JHEP05(2012)059 |
| Downloads |
Measurement_of_the_cross_section.pdf
(Final published version)
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