Excitation of the synchro-betatron resonances by the beam-beam interaction in the Tevatron Run II lattice

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Description

Effect of different mechanisms of the synchro-betatron coupling (dispersion function at the interaction points, chromatic tune modulation, finite bunch length) on the p-bar stability in the Tevatron Run II configuration is considered. It is found that the long-range interactions in the presence of large dispersion produce large contribution ({approximately}10) to the chromaticity of the betatron tunes. This chromaticity, in its turn, can give rise to multiple synchrotron satellites of the betatron resonances increasing their effective width. Novel formulae are presented which permit to significantly speed up analytical calculations of the beam-beam tuneshifts and resonance strength.

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123 Kilobytes pages

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Alexahin, Yuri I. April 30, 2001.

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Description

Effect of different mechanisms of the synchro-betatron coupling (dispersion function at the interaction points, chromatic tune modulation, finite bunch length) on the p-bar stability in the Tevatron Run II configuration is considered. It is found that the long-range interactions in the presence of large dispersion produce large contribution ({approximately}10) to the chromaticity of the betatron tunes. This chromaticity, in its turn, can give rise to multiple synchrotron satellites of the betatron resonances increasing their effective width. Novel formulae are presented which permit to significantly speed up analytical calculations of the beam-beam tuneshifts and resonance strength.

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123 Kilobytes pages

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  • Other Information: PBD: 30 Apr 2001

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  • Report No.: FERMILAB-TM-2148
  • Grant Number: AC02-76CH03000
  • DOI: 10.2172/779189 | External Link
  • Office of Scientific & Technical Information Report Number: 779189
  • Archival Resource Key: ark:/67531/metadc719159

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  • April 30, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 1, 2016, 6:49 p.m.

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Alexahin, Yuri I. Excitation of the synchro-betatron resonances by the beam-beam interaction in the Tevatron Run II lattice, report, April 30, 2001; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc719159/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.