Speaker
Ms
Claudia Bertella
(Centre National de la Recherche Scientifique (FR))
Description
Measurements of the top quark production cross sections in proton-proton collisions with the ATLAS detector at the Large
Hadron Collider are presented. The measurement require no, one or two electrons or muons in the final state (single
lepton, dilepton, hadronic channel).
In addition, the decay modes with tau leptons are tested (channels with tau leptons). The main focus are measurements of
differential spectra of ttbar final states, in particular, measurements that are able to constrain the modelling of
additional parton radiation. We also discuss the
production of top quark pairs in association with heavy quarks (beauty and charm).
Measurements of single top-quark production in the t- and Wt-channels are presented and
determination of the CKM matrix element |Vtb| is discussed. In addition, the s-channel production is explored and limits
on exotic production in single top quark processes are discussed. This also includes the search for flavor changing
neutral currents and the search for additional W’ bosons in the s-channel.
Author
Prof.
Mark Oreglia
(University of Chicago (US))
