4E: (Parallel) Top
- Peter Krieger (University of Toronto (CA))
Dr Celine Degrande (UIUC/UCL)
Standard Model & Beyond
Effective field theories provide a model independent parametrization of the physics beyond the SM if the new degrees of freedom are heavy and complement thus the searches for resonances. In this talk, I will apply this method to the top sector which is expected to play a special role in many BSM scenarios. I will then show the effects of those dimension-six operators on cross-sections and...
Yuta Takahashi (Nagoya University (JP))
We present measurements of the production of top quarks in proton-proton collisions at 7 TeV with the ATLAS detector at the Large Hadron Collider. The cross section of top-quark pair production is measured in the single lepton, dilepton, all hadronic channel and channels with tau leptons. Measurements of single top-quark production in the t-channel is also shown and the single-top quark...
Cristina Ferro (Institut Pluridisciplinaire Hubert Curien (FR))
Measurement of the top quark pair and single top production cross section at 7TeV are presented, using CMS data collected in 2010 and 2011. The ttbar inclusive cross section are measured in fully hadronic, di-leptonic (including tau lepton) and tau plus jets final states. Differential cross section of the ttbar cross section production and the top quark pairs charge asymmetry are presented as...
Oleg Brandt (Georg-August-Universitaet Goettingen (DE))
The D0 detector at the Fermilab Tevatron proton-antiproton collider has recored almost 10 fb-1 of integrated luminosity at 1.96 TeV. I will present recent precision measurements of various parameters of the top quark sector, which are using a large fraction of this well-understood dataset. In particular, I will highlight the measurement of the forward-backward strong colour charge asymmetry,...
Andrea Helen Knue (Georg-August-Universitaet Goettingen (DE)), Andrea Knue
We present results on top quark properties using data collected in 7 TeV LHC proton-proton collisions with the ATLAS detector, including the top-quark charge, mass, the polarization of W bosons, spin correlations and charge asymmetry. A search for flavour changing neutral current processes in top quark production and decay is also presented. Several extensions of the Standard Model predict the...
Michael Maes (Inter-University Institute for High Energies (BE))
We present measurements of the top quark mass and other properties, obtained from CMS data collected in 2010-2011 at a centre-of-mass energy of 7 TeV. The mass of the top quark is measured using several methods. We use the lepton+jets and the dilepton decay channels. The results are combined. Top pair production cross section measurements are used to place an indirect constraint on the top...