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Dr Markus Schulze (Johns Hopkins University)28/07/2009, 14:00Top Quark PhysicsThe production of top quark pairs at hadron colliders is an important process for understanding QCD dynamics and is sensitive to new physics. The data collected at the Tevatron and the sizable cross section at the Large Hadron Collider allow for precision measurements. To match the experimental precision, radiative corrections must be included in the theory predictions. We present results...Go to contribution page
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Dr Thomas Andrew Schwarz (University of California (UCD))28/07/2009, 14:15Top Quark PhysicsThe top quark is the heaviest particle yet observed. With the possibility for the massive top to couple to new physics at high energy scales, CDF has many complementary analyses in each top decay channel which provide strong tests of the standard model and physics beyond. With several fb-1 of data now accumulated at CDF, we are able to measure the top pair production rate with unprecedented...Go to contribution page
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Mikhail Arov (Louisiana TU, Coll. Eng. & Science-Unknown-Unknown)28/07/2009, 14:35Top Quark PhysicsWe present recent results related to the measurement of top quark production using ppbar collisions recorded with the D0 Detector at the Tevatron. The results are: Measurement of the top production cross section (abstract 216), search for W' decaying to top and b (226), forward-backward asymmetries in top quark pair production (227), Search for tt' resonances (231) and search for charged Higgs...Go to contribution page
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Dilip Jana (University of Oklahoma)28/07/2009, 14:55Top Quark PhysicsDue to the large top quark production cross section at the LHC energies, the ATLAS experiment is expected to have enough statistics to measure the top quark cross section even at initial luminosities. Recent studies performed in ATLAS on the development of top quark pair cross section measurements using the likelihood method will be discussed. An emphasis will be on measurements with data that...Go to contribution page
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Andrei Gaponenko (Lawrence Berkeley National Laboratory)28/07/2009, 15:10Top Quark PhysicsThe observation of the top quark will be an important milestone in ATLAS. This talk reviews methods that ATLAS plans to use to observe the top quark pair production process and measure its cross section.Go to contribution page
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Dr Ashish Kumar (SUNY/Buffalo)28/07/2009, 15:35
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Prof. Nikolaos Kidonakis (Kennesaw State University)28/07/2009, 16:30Top Quark PhysicsI present the latest results on the theoretical cross section for top-antitop pair production as well as for single top production at the Tevatron and the LHC. The calculations include higher-order soft-gluon corrections which are dominant near threshold. The top quark transverse momentum distribution is also presented.Go to contribution page
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Dr Cecilia Gerber (University of Illinois at Chicago)28/07/2009, 16:45Top Quark PhysicsWe report first observation of the electroweak production of single top quarks in ppbar collisions at sqrt(s) = 1.96 TeV based on 2.3 fb^-1 of data collected by the D0 detector at the Fermilab Tevatron Collider. Using events containing an isolated electron or muon and missing transverse energy, together with jets originating from the fragmentation of b quarks, we measure a cross section of...Go to contribution page
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28/07/2009, 17:10Top Quark PhysicsFor the Tevatron and future LHC searches of new physics at the TeV scale, the mass determination of particles pair produced with final states characterized by the presence of missing transverse momenta is of great importance. Within the various methods for mass determination, mT2 is one of the best observables. This variable has been extensively studied relying until now on Monte Carlo...Go to contribution page
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Dr Sonny Mantry (University of Wisconsin at Madison)28/07/2009, 17:25Top Quark PhysicsA new factorization theorem for the precision extraction of the top mass from top pair production far above threshold at the ILC is presented. The factorization theorem gives a precise relation between the measurement of properties of top jet distributions, such as thrust or hemisphere invariant mass, and the top mass. The observable is shown to be sensitive to a new class of top mass schemes...Go to contribution page
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Daniel Boline28/07/2009, 17:40Top Quark PhysicsWe present recent results related to the measurement of the top quark mass using ppbar collisions recorded with the D0 Detector at the Tevatron. The results are: A direct measurement of the mass difference between top and antitop quarks (abstract 41), Measurement of the top quark mass in the leptons+jets channel (abstract 215) and in the di-lepton channel (abstract 218).Go to contribution page
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Costas Vellidis28/07/2009, 18:05Top Quark PhysicsWe report the results of the measurements of the top quark mass in the lepton+jet, dilepton, and all-jets channels using top pair events corresponding to an integrated luminosity of more than 4 fb-1 from proton- antiproton collisions at the Tevatron recorded by the CDF II detector. We present different results using different techniques in the lepton + jets, dilepton, all-jets channels and...Go to contribution page
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