In a strongly interacting electroweak sector with an isosinglet vector state, such as the techni-omega, ${\omega }_T,$ the direct ${\omega }_{T}Z\gamma$ coupling implies that an ${\omega }_T$ can be produced by $Z\gamma$ fusion in $e\gamma$ collisions. This is a unique feature for high energy $e^{+}{e}^{-}$ or $e^{-}{e}^{-}$ colliders operating in an $e\gamma$ mode. We consider the processes $e^{-}\overrightarrow{\gamma }{e}^{-}Z\gamma$ and $e^{-}\overrightarrow{\gamma }{e}^{-}{W}^{+}{W}^{-}Z,$ both of which proceed via an intermediate ${\omega }_{T.\mathrm{}}$ We find that at a 1.5 TeV $e^{+}{e}^{-}$ linear collider operating in an $e\gamma$ mode with an integrated luminosity of $200\hspace{0.5em}{\mathrm{fb}}^{-1},$ an ${\omega }_T$ can be discovered for a broad range of masses and widths.

• Received 27 October 1998

DOI:https://doi.org/10.1103/PhysRevD.59.095006