Tropiano, A. (2011) Measurements of the top quark pair production cross section at 7TeV. Il nuovo cimento C, 34 (6). pp. 331-333. ISSN 1826-9885
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Abstract
We present several measurements of the cross section for the production of top quark pairs in proton-proton collisions at the LHC at a centre-of-mass energy of 7TeV. We use data collected with the CMS experiment during the year 2010, and amounting to a total integrated luminosity of 36 pb−1. Measurements are presented in the lepton+jets final state, where events are selected which contain exactly one isolated, highly energetic muon or electron, and at least four jets. In addition, the di-lepton final state, which consists of two leptons, at least two jets, and significant missing transverse energy is explored. We use b-jet identification in order to increase the purity of the selection. Important backgrounds are estimated using data-driven techniques, and systematic uncertainties are estimated. The results are compared with theory predictions.
| Item Type: | Article |
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| Uncontrolled Keywords: | Top quarks |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 14 Apr 2020 13:31 |
| Last Modified: | 14 Apr 2020 13:31 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17606 |
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