Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle

Head-tail type of coherent beam-beam instability has been seen in a strong-strong beam-beam simulation for collision with a large Piwinski angle σ_{z}θ/σ_{x}>>1, where θ is a half crossing angle. Beta x* is key parameter for the instability. The instability is not serious for SuperKEKB, but ca...

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Detalles Bibliográficos
Autores principales: Ohmi, Kazuhito, Kuroo, Nami, Oide, Katsunobu, Zhou, Demin, Zimmermann, Frank
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2017-THPAB021
http://cds.cern.ch/record/2287350
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author Ohmi, Kazuhito
Kuroo, Nami
Oide, Katsunobu
Zhou, Demin
Zimmermann, Frank
author_facet Ohmi, Kazuhito
Kuroo, Nami
Oide, Katsunobu
Zhou, Demin
Zimmermann, Frank
author_sort Ohmi, Kazuhito
collection CERN
description Head-tail type of coherent beam-beam instability has been seen in a strong-strong beam-beam simulation for collision with a large Piwinski angle σ_{z}θ/σ_{x}>>1, where θ is a half crossing angle. Beta x* is key parameter for the instability. The instability is not serious for SuperKEKB, but can be seen in phase II commissioning stage. It has a large impact for design of FCC-ee. We introduce wake field due to the beam-beam collision. The wake field gives turn-by-turn correlation of head-tail mode. Head-tail instability caused by the wake field explains that seen in the strong-strong beam-beam simulation.
id oai-inspirehep.net-1626233
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling oai-inspirehep.net-16262332019-09-30T06:29:59Zdoi:10.18429/JACoW-IPAC2017-THPAB021http://cds.cern.ch/record/2287350engOhmi, KazuhitoKuroo, NamiOide, KatsunobuZhou, DeminZimmermann, FrankWake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing AngleAccelerators and Storage RingsHead-tail type of coherent beam-beam instability has been seen in a strong-strong beam-beam simulation for collision with a large Piwinski angle σ_{z}θ/σ_{x}>>1, where θ is a half crossing angle. Beta x* is key parameter for the instability. The instability is not serious for SuperKEKB, but can be seen in phase II commissioning stage. It has a large impact for design of FCC-ee. We introduce wake field due to the beam-beam collision. The wake field gives turn-by-turn correlation of head-tail mode. Head-tail instability caused by the wake field explains that seen in the strong-strong beam-beam simulation.CERN-ACC-2017-289oai:inspirehep.net:16262332017
spellingShingle Accelerators and Storage Rings
Ohmi, Kazuhito
Kuroo, Nami
Oide, Katsunobu
Zhou, Demin
Zimmermann, Frank
Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle
title Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle
title_full Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle
title_fullStr Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle
title_full_unstemmed Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle
title_short Wake Field and Head-Tail Instability in Beam-Beam Collision with a Large Crossing Angle
title_sort wake field and head-tail instability in beam-beam collision with a large crossing angle
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2017-THPAB021
http://cds.cern.ch/record/2287350
work_keys_str_mv AT ohmikazuhito wakefieldandheadtailinstabilityinbeambeamcollisionwithalargecrossingangle
AT kuroonami wakefieldandheadtailinstabilityinbeambeamcollisionwithalargecrossingangle
AT oidekatsunobu wakefieldandheadtailinstabilityinbeambeamcollisionwithalargecrossingangle
AT zhoudemin wakefieldandheadtailinstabilityinbeambeamcollisionwithalargecrossingangle
AT zimmermannfrank wakefieldandheadtailinstabilityinbeambeamcollisionwithalargecrossingangle

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