Simulations on pair creation from beam-beam interaction in linear colliders

The authors modify the computer code ABEL (analysis of beam-beam effects in linear colliders) to include the pair creation processes, using the equivalent photon approximation. Special care has been taken on the nonlocal nature of the virtual photon exchanges. The simulation results are compared with analytic formulas, and are applied to the next-generation colliders such as JLC.<<ETX>>