Weak Decays of Open and Hidden Top

  • J. H. Kühn
Conference paper
Part of the Acta Physica Austriaca Supplementum XXIV book series (FEWBODY, volume 24/1982)


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.


Higgs Boson Neutral Current Event Shape Weak Decay Hadronic Decay 
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  1. 1.
    For a review and detailed discussion see J.H. Kühn, “Weak Interactions of Quarkonia”, lectures given at the XX. Cracow School of Theoretical Physics, May 1980, Acta Physica Polonica B12, (1981) 347.Google Scholar
  2. 2.
    J. Ellis and M.K. Gaillard, “Physics with very High Energy e+ e- Colliding Beams”, preprint CERN 76–18 (1976).Google Scholar
  3. 3.
    J. Bjorken, in Proc. of 1977 Hamburg Conference.Google Scholar
  4. 4.
    K. Fujikawa, Prog. Theor. Phys. 61, (1979) 1186.ADSCrossRefGoogle Scholar
  5. 5.
    G. Goggi and G. Penso, Nucl. Phys. B165, (1980) 429.ADSCrossRefGoogle Scholar
  6. 6.
    I.I. Bigi and H. Krasemann, Z. Phys. C7, (1981) 127.Google Scholar
  7. 7.
    J.H. Kühn and K.H. Streng, preprint MPI-PAE/PTh 62/81 (to be published in Nucl. Phys. B).Google Scholar
  8. 8.
    I.I. Bigi, J.H. Kühn and H. Schneider, preprint MPI-PAE/PTh (1978) 28/78.Google Scholar
  9. 9.
    R. Koniuk, R. Leroux and N. Isgur, Phys. Rev. D17, (1978) 2915.ADSCrossRefGoogle Scholar
  10. 10.
    R. Budny, Phys. Rev. D20, (1979) 2763.ADSGoogle Scholar
  11. 11.
    L.M. Seghal and P. Zerwas, Nucl. Phys. B183, (1981) 417.ADSCrossRefGoogle Scholar
  12. 12.
    F.A. Wilczek, Phys. Rev. Lett. 39, (1977) 1304.ADSCrossRefGoogle Scholar
  13. 13.
    For a recent review see E.N. Fortson and L. Wilets, in Advances in Atomic and Molecular Physics, ed. B. Bederson and D.R. Bates, Academic Press, New York 1980, Vol. 16, p. 319 ff.Google Scholar
  14. 14.
    K. Koller, K.H. Streng, T.F. Walsh and P. Zerwas, SLAC preprint (1981), in preparation.Google Scholar

Copyright information

© Springer-Verlag Wien 1982

Authors and Affiliations

  • J. H. Kühn
    • 1
  1. 1.Max-Planck-Institut für Physik und AstrophysikMunichFed. Rep. Germany

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