Recent advances of strong-strong beam-beam simulation
In this paper, we report on recent advances in strong-strong beam-beam simulation. Numerical methods used in the calculation of the beam-beam forces are reviewed. A new computational method to solve the Poisson equation on nonuniform grid is presented. This method reduces the computational cost by a half compared with the standard FFT based method on uniform grid. It is also more accurate than the standard method for a colliding beam with low transverse aspect ratio. In applications, we present the study of coherent modes with multi-bunch, multi-collision beam-beam interactions at RHIC. We also present the strong-strong simulation of the luminosity evolution at KEKB with and without finite crossing angle.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of High Energy andNuclear Physics. Division of High Energy Physics, Office of AdvancedScientificComputing Research
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 859924
- Report Number(s):
- LBNL-56360; R&D Project: 453401; BnR: KA1401030; TRN: US0504831
- Resource Relation:
- Conference: 8th International Computational AcceleratorPhysics Conference, St. Petersburg, Russia, June 29 - July 02,2004
- Country of Publication:
- United States
- Language:
- English
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