7,387 research outputs found
Forward-backward asymmetry in t¯t production
We present new measurements of the forward-backward asymmetry in t¯t production, performed with 5 fb−1 of Tevatron p¯p collisions at center of mass energy 1.96 TeV, recorded and analyzed at CDF. Significant inclusive asymmetries are observed in both the lepton+jets and the dilepton decay modes of the t¯t pair. In the dilepton mode, the asymmetry is observed in the reconstructed top rapidity,
and in the lepton rapidity difference which is independent of any top reconstruction. In the lepton plus jets sample, the full reconstruction of the top kinematics is used to measure the dependence of the asymmetry on the rapidity difference Δy and the invariant mass Mt¯t of the t¯t system, and the asymmetry is found to be most significant at large rapidity and mass
Asymmetries in top quark pair production at hadron colliders
We review the asymmetries in top quark pair production at the Tevatron and
the LHC. We summarize the experimental measurements and the interpretations of
a possible excess in terms of new physics. We also review other top quark
properties-emphasizing effects related to the asymmetries-as well as
other collider signals.Comment: RevTeX 40 pages. Final version to be published in Reviews of Modern
Physics, with several addition
First ADS analysis of B- -> D0K- decays in hadron collisions
Proceedings of DISCRETE 2010, Symposium on Prospects in the Physics of
Discrete Symmetries, Rome (IT), 6-11 December 2010Comment: 7 pages, 5 figure
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Study of vector boson decay and determination of the Standard Model parameters at hadronic colliders
The power of the detectors and the datasets at hadronic colliders begins to allow measurement of the electroweak parameters with a precision that confronts the perturbative corrections to the theory. Recent measurements of M{sub z}, M{sub w}, and sin {theta}{sub w} by CDF and UA2 are reviewed, with some emphasis on how experimental precision is achieved, and some discussion of the import for the specifications of the Standard Model. 14 refs., 10 figs., 4 tabs
Measurement of sin2 θeff lept using e+e- pairs from γ∗/Z bosons produced in pp collisions at a center-of-momentum energy of 1.96 TeV
Measurement of the forward-backward asymmetry in low-mass bottom-quark pairs produced in proton-antiproton collisions
Measurement of the forward-backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set
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