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Models to study multi bunch coupling through head-on and long-range beam-beam interactions

In the LHC almost 6000 bunches will collide in four interaction regions where they experience head-on as well as clustered long range interactions. These lead to a coupling between all bunches and coherent beam-beam effects. For two colliding bunches this is well understood. However, for a larger nu...

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Detalles Bibliográficos
Autores principales: Pieloni, T, Herr, Werner
Lenguaje:eng
Publicado: 2006
Materias:
Acceso en línea:http://cds.cern.ch/record/972663
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author Pieloni, T
Herr, Werner
author_facet Pieloni, T
Herr, Werner
author_sort Pieloni, T
collection CERN
description In the LHC almost 6000 bunches will collide in four interaction regions where they experience head-on as well as clustered long range interactions. These lead to a coupling between all bunches and coherent beam-beam effects. For two colliding bunches this is well understood. However, for a larger number of bunches colliding with different collision patterns, it results in a complex spectrum of oscillation frequencieswith consequences for beam measurements and Landau damping. To study the coherent beam-beam modes, three complementary models have been developped and will be described in this report. Two of these methods rely on self-consistent multi-bunch and multi-particle tracking while the third is an analytic model based on a complex matrix algorithms. The three methods together provide useful information about the beambeam coupling of multi bunch beams and together provide a deeper insight into the underlying physics.
id cern-972663
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-9726632023-05-31T13:24:28Zhttp://cds.cern.ch/record/972663engPieloni, THerr, WernerModels to study multi bunch coupling through head-on and long-range beam-beam interactionsAccelerators and Storage RingsIn the LHC almost 6000 bunches will collide in four interaction regions where they experience head-on as well as clustered long range interactions. These lead to a coupling between all bunches and coherent beam-beam effects. For two colliding bunches this is well understood. However, for a larger number of bunches colliding with different collision patterns, it results in a complex spectrum of oscillation frequencieswith consequences for beam measurements and Landau damping. To study the coherent beam-beam modes, three complementary models have been developped and will be described in this report. Two of these methods rely on self-consistent multi-bunch and multi-particle tracking while the third is an analytic model based on a complex matrix algorithms. The three methods together provide useful information about the beambeam coupling of multi bunch beams and together provide a deeper insight into the underlying physics.LHC-PROJECT-Report-937CERN-LHC-Project-Report-937oai:cds.cern.ch:9726632006-07-13
spellingShingle Accelerators and Storage Rings
Pieloni, T
Herr, Werner
Models to study multi bunch coupling through head-on and long-range beam-beam interactions
title Models to study multi bunch coupling through head-on and long-range beam-beam interactions
title_full Models to study multi bunch coupling through head-on and long-range beam-beam interactions
title_fullStr Models to study multi bunch coupling through head-on and long-range beam-beam interactions
title_full_unstemmed Models to study multi bunch coupling through head-on and long-range beam-beam interactions
title_short Models to study multi bunch coupling through head-on and long-range beam-beam interactions
title_sort models to study multi bunch coupling through head-on and long-range beam-beam interactions
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/972663
work_keys_str_mv AT pielonit modelstostudymultibunchcouplingthroughheadonandlongrangebeambeaminteractions
AT herrwerner modelstostudymultibunchcouplingthroughheadonandlongrangebeambeaminteractions