STOCHASTIC COOLING OF A POLARIZED PROTON BEAM AT COSY

摘要

Future experiments at COSY with vertically polarized proton beams and internal targets at beam momentum larger than 1.5 GeV/c require stochastic cooling and barrier bucket operation to compensate the strong mean energy loss and beam momentum dilution due to the beam-target interaction. At the same time a long beam polarization life time is mandatory in these experiments. Albeit the electromagnetic fields in the kicker of the stochastic cooling system are small the question arises whether they can lead to de-polarization specifically in long time experiments. To investigate this question is also of great importance for the future challenging program at COSY to search for electric dipole moments of protons and deuterons.