Simulation of the beam halo from the beam-beam interaction in LEP
The luminosity lifetimes of e{sup +}e{sup {minus}} colliders are often dominated by the halo produced by the beam-beam interaction. They have developed a simulation technique to model this halo using the flux across boundaries in amplitude space to decrease the CPU time by a factor of one-hundred or more over `brute force` tracking. It allows simulation of density distributions and halos corresponding to realistic lifetimes. Reference 1 shows the agreement with brute force tracking in a number of cases and the importance of beam-beam resonances in determining the density distribution of large amplitudes. this research is now directed towards comparisons with operating colliders and studies of the combined effects of lattice and beam-beam nonlinearities. LEP offers an ideal opportunity for both, and in this paper they are presenting the first results of LEP simulations.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 10136586
- Report Number(s):
- SLAC-PUB-6432; CONF-940174-1; ON: DE94009097; TRN: 94:007484
- Resource Relation:
- Conference: 4. annual LEP performance workshop,Chamonix (France),17-21 Jan 1994; Other Information: PBD: Feb 1994
- Country of Publication:
- United States
- Language:
- English
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