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Simultaneous measurements of $t\bar{t}$, $WW$ and $Z/\gamma^*\to \tau^+\tau^-$ production at $\sqrt{s}=7$ TeV with the ATLAS detector
A global test of these Standard Model predictions is presented through the study of the common final state made up of a pair of an oppositely charged electron and muon in proton-proton collisions at sqrt(s) = 7 TeV recorded by the ATLAS detector at the LHC. The simultaneous measurement of the cross-...
Autores principales: | , , , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2014
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1745678 |
Sumario: | A global test of these Standard Model predictions is presented through the study of the common final state made up of a pair of an oppositely charged electron and muon in proton-proton collisions at sqrt(s) = 7 TeV recorded by the ATLAS detector at the LHC. The simultaneous measurement of the cross-sections of the pair production of top quarks, tau-leptons via Drell-Yan, and WW bosons is performed. The simultaneous extraction of the cross-sections is performed in a two-dimensional phase space spanned by missing transverse momentum and jet multiplicity. This analysis allows for a broader test of the Standard Model than that given by dedicated cross-section measurements providing the underlying correlations in the predicted and measured cross-sections due to common proton parton distribution functions parameters. This measurement can help to improve predictions of interaction cross-sections in hadron collisions. |
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