Speaker
Bruno Galhardo
(Universidade de Coimbra (PT))
Description
The latest measurements of the properties of the top quark using the ATLAS
experiment are presented. The top quark mass is one of the fundamental parameters
of the Standard Model. A measurement based on a multi-dimensional template fit
that can constrain the uncertainties on the energy measurements of jets is presented
and combined with a measurement using dilepton events. In addition, novel
measurements aiming to measure the mass in a well-defined scheme are presented.
The top quark pair charge asymmetry is an asymmetry predicted to occur beyond
leading-order QCD in the Standard Model, and may be significantly enhanced by
the presence of new physics. The ttbar production charge asymmetry is measured
inclusively and differentially using the 7 and 8 TeV ATLAS datasets. Making use
of the large number of top quark pairs collected, we also present measurements
of the spin correlation between top and anti-top quarks and discuss their
sensitivities to new physics. A search for flavour changing neutral current processes
in top quark decays is also presented.
Author
Bruno Galhardo
(Universidade de Coimbra (PT))