NUNUGPV - A Monte Carlo event generator for e(+)e(-)->nu(nu)over-bar gamma(gamma) events at LEP

The Monte Carlo program NUNUGPV, designed for computing distributions and generating events for the reaction e(+)e(-) --> <nu(nu)over bar>gamma(gamma), is described. The lowest-order spectrum of the hard-scattering photon includes the contribution from both Z and W exchange within the electroweak theory and is convoluted with p(t)-dependent QED structure functions in order to explicitly generate the transverse degrees of freedom of the additional photons emitted by the colliding particles, The code is designed for a two-fold use: as a Monte Carlo integrator of weighted events, giving in output the total cross section; and as a true event generator, allowing for events with up-to-three exclusive photons.