Energy dependence of the survival probability of large rapidity gap

The energy dependence for the survival probability of large rapidity gaps (LRG) $<\mid S{\mid }^2>$, is calculated in an Eikonal model assuming a Gaussian opacity. The parameters determining $<\mid S{\mid }^2>$ are evaluated directly from experimental data, without further recourse to models. We find that $<\mid S{\mid }^2>$ decreases with increasing energy, in line with recent results for LRG dijet production at the Tevatron.