Bg. Nguyen et Ws. Yang, GAUSSIAN LIMIT FOR CRITICAL ORIENTED PERCOLATION IN HIGH DIMENSIONS, Journal of statistical physics, 78(3-4), 1995, pp. 841-876
In this paper, we consider the spread-out oriented bond percolation mo
dels in Z(d) X Z With d > 4 and the nearest-neighbor oriented bond per
colation model in sufficiently high dimensions. Let n(n), n = 1, 2,...
, be the random measures defined on R(d) by [GRAPHICS] The mean of eta
(n) denoted by <(eta)over bar>(n), is the measure defined by <(eta)ove
r bar>(n)(A) = E(p)[eta(n)(A)] We use the lace expansion method to sho
w that the sequence of probability measures [<(eta)over bar>(n)(R(d))]
(-1)<(eta)over bar>(n) converges weakly to a Gaussian limit as n --> i
nfinity for every p in the subcritical regime as well as the critical
regime of these percolation models. Also we show that for these models
the parallel correlation length xi(p) similar to \p(c) - p\(-1) as p
up arrow p(c).