Adam Roe
(Goettingen University)
09/06/2011, 17:00
We present a measurement of the top-quark pair-production in proton-proton collisions at = 7 TeV with the ATLAS detector at the Large Hadron Collider using the full 2010 data sample. The cross sections are measured in the lepton+jets and dilepton channels both with and without the use of b-tagging
Haryo Sumowidagdo
(University of California, Riverside)
09/06/2011, 17:20
We present precise measurements of the top quark pair production cross section at 7 TeV, performed using CMS data collected in 2010-2011. The total cross section is measured in the lepton+jets, dilepton and fully hadronic channels, including the tau-dilepton and tau+jets modes. The results are combined and confronted with precise theory calculations. We also obtain an indirect constraint on...
Gregory Moreau
(LPT Orsay)
09/06/2011, 17:40
Since a decade, there have been extensive developments about an alternative to super- symmetry: the scenarios with warped extra dimensions. Those constitute a new paradigm in the sense that they are dual, through the AdS/CFT correspondence, to composite Higgs models. These scenarios predict strong deviations from the Standard Model mainly in the bottom and top quark sector. In that sense, the...
Reinhard Schwienhorst
(Michigan State University)
09/06/2011, 18:00
We present the result of searches for single top-quark production in the t- and Wt-channels in 7 TeV proton-proton collisions with the ATLAS detector using the full 2010 data sample. The t-channel search is based on the selection of events with a single lepton (muon or electron), jets and missing transverse energy. A likelihood function approach is also used to cross-check the result. Results...
Mara Senghi Soares
(CIEMAT Madrid)
09/06/2011, 18:20
We present measurements of single top quark production, performed using CMS data collected in 2010-2011 at a centre-of-mass energy of 7 TeV. The cross section for the electroweak production of single top quarks is measured in the t-channel using various methods. The combined result is used to place a constraint on the CKM matrix element Vtb. The data sample analyzed allows to study also...
Valerio Dao
(University of Geneve)
09/06/2011, 18:40
We present result on the direct measurement of the top quark mass in the lepton+jets channel, and an ndirect measurement of the top quark mass from the top quark pair production cross section. We also present a measurement of the W boson polarisation in top quark decays and set limits on anomalous contributions to the Wtb vertex. All data were collected from proton-proton collisions at...
Thomas Speer
(Brown University)
09/06/2011, 19:00
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, as well as the dilepton and the fully hadronic decay channels. The results are combined. Top pair production cross section measurements are used to place an...
