Top Quark Pair Production Cross Section and Forward-Backward Asymmetry at the Tevatron
نویسنده
چکیده
The study of top quark pair production at the Tevatron is now entering the realm of precision physics. With 2.8 fb−1 of CDF data there are over 1200 reconstructed tt̄ events in the lepton + jets channel. As the integrated luminosity increases, it is possible to improve not only measurements of the properties of the top quark but also maybe to search for new physics by comparing the tt̄ cross section measurements in different channels, or by measuring the forward-backward charge asymmetry. We present here results of the tt̄ cross section in the dilepton channel, where both of the W s decay leptonically as well as in the lepton + jets channel, where one W decays leptonically and the other hadronically. We will also present combinations of recent CDF and DØ tt̄ cross sections. In addition, we present results from studies of asymmetry in the centre of mass in the production of top quarks in the lepton + jets tt̄ final states.
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