Dr
Markus Schulze
(Johns Hopkins University)
28/07/2009, 14:00
Top Quark Physics
The 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...
Dr
Thomas Andrew Schwarz
(University of California (UCD))
28/07/2009, 14:15
Top Quark Physics
The 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...
Mikhail Arov
(Louisiana TU, Coll. Eng. & Science-Unknown-Unknown)
28/07/2009, 14:35
Top Quark Physics
We 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...
Dilip Jana
(University of Oklahoma)
28/07/2009, 14:55
Top Quark Physics
Due 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...
Andrei Gaponenko
(Lawrence Berkeley National Laboratory)
28/07/2009, 15:10
Top Quark Physics
The 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.
Dr
Ashish Kumar
(SUNY/Buffalo)
28/07/2009, 15:35
Prof.
Nikolaos Kidonakis
(Kennesaw State University)
28/07/2009, 16:30
Top Quark Physics
I 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.
Dr
Cecilia Gerber
(University of Illinois at Chicago)
28/07/2009, 16:45
Top Quark Physics
We 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...
Dr
Sonny Mantry
(University of Wisconsin at Madison)
28/07/2009, 17:25
Top Quark Physics
A 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...
Daniel Boline
28/07/2009, 17:40
Top Quark Physics
We 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).
Costas Vellidis
28/07/2009, 18:05
Top Quark Physics
We 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...
