Analytical estimation of dynamic apertures limited by the wigglers in storage rings

By applying the general dynamic aperture formulae for the multipoles in a storage ring developed by Gao (Nucl. Instr. and Meth. A 451 (2000) 545), in this paper, we give the analytical formulae for the dynamic apertures limited by the wigglers in storage rings and their validities have been confirmed by comparing with numerical simulation results.