Absorbing phase transition in a conserved lattice gas with random neighbour particle hopping

A conserved lattice gas with random neighbour hopping of active particles i s introduced which exhibits a continuous phase transition from an active st ate to an absorbing non-active state. Since the randomness of the particle hopping breaks long-range spatial correlations our model mimics the mean-fi eld scaling behaviour of the recently introduced new universality class of absorbing phase transitions with a conserved field. The critical exponents of the order parameter are derived within a simple approximation. The resul ts are compared with those of simulations and field theoretical approaches.