Renormalization group reduction of the Henon map and application to the transverse betatron motion in cyclic accelerators

2003
13 pages
Published in:
  • New J.Phys. 5 (2003) 67
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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