Weak-strong beam-beam simulations for the LHC

A weak-strong simulation code similar to that written 
by Irwin for the SSC is used to study the amplitude growth
induced by triplet field errors, head-on collisions and 
long-range beam-beam interactions in the LHC. We present the 
dependence of the simulated transverse diffusion rate on
various parameters, such as starting amplitude, working 
point in tune diagram, crossing angle, triplet 
nonlinearities, and tune modulation.