Renormalization group reduction of the Henon map and application to the transverse betatron motion in cyclic accelerators
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Abstract: (IOP)
The renormalization group?(RG) method is applied to the study of discrete dynamical systems. As a particular example, the H?non map is considered as being applied to describe the transverse betatron oscillations in a cyclic accelerator or storage ring possessing a FODO-cell structure with a single thin sextupole. A powerful RG method is developed that is valid correct to fourth order in the perturbation amplitude, and a technique for resolving the resonance structure of the H?non map is also presented. This calculation represents an application of the RG method to the study of discrete dynamical systems in a unified manner capable of reducing the dynamics of the system both far from and close to resonances, thus preserving the symplectic symmetry of the original map.Note:
- LaTeX, 18 pages, 4 figures
- synchrotron: beam dynamics
- beam dynamics: nonlinear
- beam dynamics: transfer matrix
- transfer matrix: symplectic
- quadrupole lens: special focusing
- renormalization group
References(24)
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