A study of beam-beam interactions at finite crossing angles for a B-factory

The feasibility of adopting a finite beam crossing angle at the interaction point of KEKB B-factory has been studied. Various aspects of beam behaviors, such as sensitivities to resonances and development of bunch tails, have been investigated with computer simulations. It is shown that an acceptable operating condition can be found with a suitable combination of machine parameters that are envisioned at KEKB.