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Phys. Rev. ST Accel. Beams 7, 044402 (2004) [12 pages]

Longitudinal solitons in bunched beams

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M. Blaskiewicz* and J. Wei
BNL, Upton, New York 11973, USA

A. Luque and H. Schamel
University of Bayreuth, 95440 Bayreuth, Germany

Received 4 February 2004; published 28 April 2004

Stable, coherent, longitudinal oscillations have been observed in several accelerators. Within the context of perturbation theory, the beam parameters and machine impedance often suggest these oscillations should be Landau damped. When nonlinear effects are included, long-lived, stable oscillations become possible for low intensity beams. In this paper we report observations of stable humps in bunched beams and present a theoretical framework for their description. Implications for bunched beam stochastic cooling are considered.

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© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevSTAB.7.044402
DOI:
10.1103/PhysRevSTAB.7.044402
PACS:
29.27.–a

*Electronic address: mmb@bnl.gov