Higher-order QED corrections to e(+)e(-)->nu(nu)over-bar-gamma at LEP2

The process e(+)e(-) --> nu(nu)over-bar+gamma with a distinctive "photon-pl us-missing-energy" signal can serve as an important tool to search for new physics at LEP2. It can be exploited to measure the WW gamma coupling, or t o search for weakly interacting and invisible (s) particles. For meaningful comparisons of experimental data with theoretical predictions, higher-orde r QED corrections due to multiphoton emission must be taken into account. I n the present paper we explain how the WW gamma coupling has been incorpora ted into the KORALZ Monte Carlo program, which can now be used for simulati ons of e(+)e(-) --> nu(nu)over-bar+gamma events with higher-order QED corre ctions. The strategy of how to perform an experimental analysis in the pres ence of experimental cuts is proposed. The question of systematic uncertain ties is addressed and some numerical results for the phenomenologically int eresting case of anomalous WW gamma couplings are also given.