Beam beam deflection and signature curves for elliptic beams

摘要

In this note we will present closed expressions for the beam-beam deflection angle for arbitrary elliptic beams including tilt. From these expressions signature curves, i.e. systematic deviations from the round beam deflection curve due to ellipticity or tilt are derived. In the course of the presentation we will prove that it is generally impossible to infer individual beamsizes from beam-beam deflection scans. 3 refs., 2 figs. (ERA citation 16:001044)