Elsevier

Nuclear Physics B

Volume 272, Issues 3–4, 4 August 1986, Pages 560-580
Nuclear Physics B

Z decays to top quarks

https://doi.org/10.1016/0550-3213(86)90235-XGet rights and content

Abstract

Z decays to top quark pairs — if kinematically possible — will provide an accurate measurement of the top-quark mass in e+e collisions. We study various distributions of leptons and jets in the final state for semileptonic quark decays. Fragmentation and polarization effects are analyzed. In addition to large longitudinal and transverse polarizations, a small normal t-quark polarization is built up by γ,Z interference and perturbative QCD corrections. We comment also briefly on polarization effects in the tb decays of W bosons that are hadronically produced.

References (17)

  • J.H. Kühn

    Nucl. Phys.

    (1984)
  • S. Güsken et al.

    Phys. Lett.

    (1985)
  • Y. Azimov et al.

    Sov. J. Nucl. Phys.

    (1983)
  • G. Arnison

    Phys. Lett.

    (1984)
  • S. Güsken et al.

    SLAC-PUB-3580

    (March 1985)
  • J. Jersák et al.

    Phys. Rev.

    (1982)
  • F. Richard and P. Roudeau, Experience Delphi...
  • C. Peterson et al.

    Phys. Rev.

    (1983)
There are more references available in the full text version of this article.

Cited by (75)

  • SUSY QCD corrections to the polarization and spin correlations of top quarks produced in e<sup>+</sup>e<sup>-</sup> collisions

    2003, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
  • Decay-lepton angular distributions in e<sup>+</sup>e<sup>-</sup> → tt̄ To O(α<inf>s</inf>) in the soft-gluon approximation

    2001, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
View all citing articles on Scopus

Work supported in part by the Department of Energy, contract DE-AC03-76SF00515 and the West German Science Foundation DFG.

View full text