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- Jack J. Shi, Lihui Jin, Orithai Kheawpum
- Physical review. E, Statistical, nonlinear, and…
- 2004

In cases of multibunch operation in storage-ring colliders, serious long-range beam-beam effects could be due to many parasitic collisions that are localized inside interaction regions or/and distributed around the ring. To reduce the long-range beam-beam effects, the compensation of long-range beam-beam interaction with magnetic multipole correctors based… (More)

- Lihui Jin, Jack J. Shi, Georg Hoffstätter
- Physical review. E, Statistical, nonlinear, and…
- 2005

Coherent beam-beam tune shift of unsymmetrical beam-beam interactions was studied experimentally and numerically in HERA, where the lepton beam has such a large beam-beam parameter (up to xi(y) = 0.272 ) that the single-particle motion is locally unstable at the origin (closed orbit). Unlike the symmetrical case of beam-beam interactions, the ratio of the… (More)

Report: Cornell CBN-03-13 PAC’03, Portland/OR By the luminosity upgrade for HERA, the horizontal and vertical beam-beam parameter of the electron beam have approximately doubled. To examine any possible luminosity reduction due to beam-beam effects, several beam experiments were performed [1]. In order to have a better understanding of those experimental… (More)

- Lihui Jin, Jack J. Shi
- Physical review. E, Statistical, nonlinear, and…
- 2004

In hadron colliders, electron-beam compensation of beam-beam tune spread has been explored for a reduction of beam-beam effects. In this paper, effects of the tune-spread compensation on beam-beam instabilities were studied with a self-consistent beam-beam simulation in model lattices of Tevatron and Large Hodron Collider. It was found that the reduction of… (More)

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