T. Sen et Ja. Ellison, DIFFUSION DUE TO BEAM-BEAM INTERACTION AND FLUCTUATING FIELDS IN HADRON COLLIDERS, Physical review letters, 77(6), 1996, pp. 1051-1054
Random fluctuations in the tune, beam offsets, and beam size in the pr
esence of the beam-beam interaction are shown to lead to significant p
article diffusion and emittance growth in hadron colliders. We find th
at far from resonances high frequency noise causes the most diffusion
while near resonances low frequency noise is responsible for the large
emittance growth observed. Comparison of different fluctuations shows
that offset fluctuations between the beams cause the largest diffusio
n for particles in the beam core.