Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel
A measurement of the production cross-section for top quark pairs (tt-) in pp collisions at s=7TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momen...
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2012
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v711_n3-4_p244_Aad http://hdl.handle.net/20.500.12110/paper_03702693_v711_n3-4_p244_Aad |
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paper:paper_03702693_v711_n3-4_p244_Aad2023-06-08T15:37:04Z Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel Cross-section High-energy collider experiment Top physics A measurement of the production cross-section for top quark pairs (tt-) in pp collisions at s=7TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb -1 , two different multivariate methods, one of which uses b-quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of σtt-=187±11(stat.)-17+18(syst.)±6(lumi.)pb and σtt-=173±17(stat.)-16+18(syst.)±6(lumi.)pb respectively. The two measurements are in agreement with each other and with QCD calculations. The first measurement has a better a priori sensitivity and constitutes the main result of this Letter. © 2012 CERN. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v711_n3-4_p244_Aad http://hdl.handle.net/20.500.12110/paper_03702693_v711_n3-4_p244_Aad |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cross-section High-energy collider experiment Top physics |
| spellingShingle |
Cross-section High-energy collider experiment Top physics Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| topic_facet |
Cross-section High-energy collider experiment Top physics |
| description |
A measurement of the production cross-section for top quark pairs (tt-) in pp collisions at s=7TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb -1 , two different multivariate methods, one of which uses b-quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of σtt-=187±11(stat.)-17+18(syst.)±6(lumi.)pb and σtt-=173±17(stat.)-16+18(syst.)±6(lumi.)pb respectively. The two measurements are in agreement with each other and with QCD calculations. The first measurement has a better a priori sensitivity and constitutes the main result of this Letter. © 2012 CERN. |
| title |
Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_short |
Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_full |
Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_fullStr |
Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_full_unstemmed |
Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_sort |
measurement of the top quark pair production cross-section with atlas in the single lepton channel |
| publishDate |
2012 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v711_n3-4_p244_Aad http://hdl.handle.net/20.500.12110/paper_03702693_v711_n3-4_p244_Aad |
| _version_ |
1768544454683131904 |