Weak Decays of Open and Hidden Top
Within our present standard model of electroweak interaction it is most natural to expect top: a sixth quark which — together with the well established b-completes the third weak isodoublet of quarks. Experimentally no signal for toponium has been found up to 37 GeV. Although this may be disappointing one hand, the perspectives to test new and interesting physics get increasingly exciting with increasing quarkonium mass. A variety of QCD predictions will be tested in a decisive manner. The quarkonium potential, which determines levels, wave functions and transition rates/will be measured over a rather wide range. Short distance properties of QCD will be investigated through the study of hadronic decays, in particular into three gluons. Although far cleaner and more convincing, these investigations will be still quite similar to the corresponding ones for the bb systems.
KeywordsHiggs Boson Neutral Current Event Shape Weak Decay Hadronic Decay
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