CP Violation and the Width $Z\to b\bar{b}$

Abstract

We discuss the effect of CP-violating $Zb\bar{b}$, $Zb\bar{b}G$ and $Zb\bar{b}\gamma$ couplings on the width $\Gamma (Z\to b\bar{b}X)$. The presence of such couplings leads in a natural way to an increase of this width relative to the prediction of the standard model. Various strategies of a direct search for such CP-violating couplings by using CP-odd observables are outlined. The number of $Z$ bosons required to obtain significant information on the couplings in this way is well within the reach of present LEP experiments.

18 pages, LaTeX, no figures

References in corpus (1)

• Effect of longitudinal electron polarization in the measurement of the $\tau$ weak dipole moment in $e^{+}{e}^{-}$ collisions

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