CRYSTALLINE BEAMS AT HIGH ENERGIES

Previously it was shown that by crystallizing each of the two counter-circulating beams, a much larger beam-beam tune shift can be tolerated during the beam-beam collisions; thus a higher luminosity can be reached for colliding beams [1]. On the other hand, crystalline beams can only be formed at energies below the transition energy (γT) of the accelerators [2]. In this paper, we investigate the formation of crystals in a high-γT lattice that also satisfies the maintenance condition for a crystalline beam [3]