Transverse beam tails due to inelastic scattering

Abstract

Non-Gaussian beam tails producing low beam lifetimes and background to the experimental detectors can be a serious performance limitation in colliding beam facilities. We describe simulations and measurements of non-Gaussian beam tails performed on the ${e}^{+}{e}^{\ensuremath{-}}$ collider LEP that revealed the importance of inelastic particle scattering as launching processes of particles to large amplitudes.