Longitudinal beam dynamics simulation in electron rings in strong rf focusing regime

Obtaining very short bunches in an electron storage ring is one of the frontiers of the accelerator physics. The strong rf focusing (SRFF) is a way to have short bunches at a given position in the ring, thanks to the principle of the bunch length modulation. Until now, the bunch length modulation has been studied only in the limit of zero current; in this paper we present the results of a simulation code suitable to study the effects of coherent synchrotron radiation and vacuum chamber wakefields on the single bunch longitudinal dynamics in the SRFF regime. The code has been applied to three different lattices that can be realized in the Frascati e(+)/e(-) collider DA Phi NE for a possible experiment on bunch length modulation.