ANOMALOUS G(5)(Z) COUPLING AT GAMMA-GAMMA COLLIDERS

We study the constraints on the anomalous coupling g(5)(Z) that can be obtained from the analysis of the reaction gamma gamma --> W+W- Z at future linear e(+)e(-) colliders. We find out that a 0.5 (1) TeV e(+)e (-) collider operating in the gamma gamma mode can probe values of g(5 )(Z) of the order of 0.15 (4.5 x 10(-2)) for an integrated luminosity of 10 fb(-1). This shows that the ability to search for this anomalous interaction of the gamma gamma mode is better than the one of the usu al e(+)e(-) mode, and it is similar to the ability of the e gamma mode .