On stochastic cooling of bunches in the colliding beam mode in high energy p-p storage rings

Possible cooling rates for stochastic cooling of intense bunches of protons and antiprotons in the colliding beam mode in the Fermilab Tevatron and the CERN SPS pp colliders are estimated, based solely on the bandwidth of the cooling system and the phase-space structure of the bunches and found to be a few tens of hours for high frequency large bandwidth feedback systems typically in the 8-16 GHz range and higher. The feasibility of even such slow cooling schemes, will depend on successful design of pick-ups, kickers and novel signal processing schemes in this high frequency regime, all of which demand detailed study.