Discovering Non-Abelian Weak Couplings and an Anomalous Magnetic Dipole Moment of the $W^{\pm }$ at LEP~2

Abstract

In view of the forthcoming results on $W^{\pm }$ pair production at LEP~2, we emphasize that {\em direct empirical evidence} on non-trivial properties of the weak vector bosons can be obtained with relatively limited integrated luminosity. An integrated luminosity of $10{\mathrm{pb}}^{-1}$ at $\sqrt{s}=175$ GeV will be sufficient to provide direct experimental evidence for non-vanishing self-couplings of non-Abelian type among the weak vector bosons. An integrated luminosity of $100{\mathrm{pb}}^{-1}$ at $\sqrt{s}=175$ GeV will provide direct evidence for the existence of an anomalous magnetic dipole moment of the charged vector bosons $W^{\pm }$.

Comments: 6 pages LaTeX + 2 Figures; Revised Version contains correction of an erroneous formulation made in connection with the principle of minimal substitution; the title has been changed