DØ Top Physics
نویسنده
چکیده
The top quark, which completes the quark sector of the SM, was discovered in 1995 at the Tevatron by the CDF and DØ Collaborations [1]. Being the heaviest of all quarks with a mass of 178.0 ± 4.3 GeV/c [2], it couples most strongly to the Higgs boson, and its lifetime of ≈ 4 · 10 s means that it is the only quark that decays before it can hadronise, preserving spin information, and providing a way to study the decay of an essentially free quark. Measuring the production cross section of the top quark and its different properties such as mass, W helicity in its decay, branching fraction B(t → Wb), etc., and comparing with predictions of the SM is a very powerful tool for searching for physics beyond the SM.
منابع مشابه
Top Quark Physics Results from Dø for the Dø Collaboration
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