Building the RHIC Tracking Lattice Model

摘要

In the calculation of dynamic aperture and beam-beam lifetime, a realistic lattice model is required to benchmark the current RHIC observation and to predict the future operation. The tracking lattice model we are currently using is incomplete. For example, the multipole field errors in the arc main dipoles and quadrupoles, the effect of closed orbit are ignored. Up to now in our dynamic aperture calculation the beam-beam interaction is modeled as a 4-D transverse kick, which is not justified by the fact that the proton bunch length is comparable to the (beta) at the collisonal interaction points (IPs). The goal of this note is to include all the known errors and noise sources into the tracking lattice model.