TGCs from 189 GeV Data

In this chapter the results of the TGC fits to the data set described in chapter 5 will be presented. Measurements of the ${\rm SU}(2)_{L}\times {\rm U}(1)_{Y}$ gauge invariant set of CP-conserving couplings $\Delta\kappa_{\gamma}$, $\Delta g^{z}_{1}$ and $\lambda$, were made along with the ${\rm SU}(2)_{L}\times {\rm U}(1)_{Y}$ gauge invariant set of CP-violating couplings $\tilde{\kappa}_{z}$, $\tilde{\lambda}_{z}$ and $g^{z}_{4}$. In all cases the constraints given in chapter 3, equation 3.16 were implemented.

Fits were performed to both the single W SDM elements extracted from the ${\rm W}\rightarrow\ell\bar{\nu}_{\ell}$ decay angles and the W boson production angle as described in chapter 6. These two fits were combined to give an overall value for each TGC.