Stability diagram of colliding beams
  The effect of the beam-beam interactions on the stability of impedance mode is discussed. The detuning is evaluated by the means of single particle tracking in arbitrarily complex collision configurations, including lattice non-linearities, and used to numerically evaluate the dispersion integral. This approach also allows the effect of non-Gaussian distributions to be considered. Distributions modified by the action of external noise are discussed. 
X. Buffat (EPFL, Lausanne) (CERN), W. Herr (CERN), N. Mounet (CERN),   T. Pieloni (CERN)
physics.acc-ph