2-9 July 2014
Valencia, Spain
Europe/Madrid timezone

Simultaneous measurements of ttbar, WW an Z->tau+tau productions with the ATLAS detector

3 Jul 2014, 11:30
Sala 3+4 ()

Sala 3+4

Oral presentation Top-quark and ElectroWeak Physics Top-quark and ElectroWeak Physics


Dr. Antonio Limosani (University of Sydney)


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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