Study of coupled-bunch collective effects in the PEP-II B-factory

We present an overview of the calculated longitudinal and transverse coupled-bunch (CB) growth rates using the measured RF cavity higher order mode impedance and estimated resistive wall (RW) impedance for the proposed PEP-II B-Factory, a dual-ring electron-positron collider. We also describe a visual method of representing the effective beam impedance and corresponding growth rates which is especially useful for understanding the dependence of of growth rate on higher order mode frequency and Q, the spread of HOM frequencies between cells, and for determining the requirements of the CB feedback systems