Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHC

Beam-beam forces and collision optics can strongly affect beam lifetime, dynamic aperture, and halo formation in particle colliders. Extensive analytical and numerical simulations are carried out in the design and operational stage of a machine to quantify these effects, but experimental data is sca...

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Autores principales: Stancari, G., Annala, G., Johnson, T.R., Previtali, V., Still, D., Assmann, R.W., Bruce, R., Burkart, F., Redaelli, S., Salvachua, B., Valentino, G.
Lenguaje:eng
Publicado: 2013
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.5170/CERN-2014-004.83
http://cds.cern.ch/record/1637929
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author Stancari, G.
Annala, G.
Johnson, T.R.
Previtali, V.
Still, D.
Assmann, R.W.
Bruce, R.
Burkart, F.
Redaelli, S.
Salvachua, B.
Valentino, G.
author_facet Stancari, G.
Annala, G.
Johnson, T.R.
Previtali, V.
Still, D.
Assmann, R.W.
Bruce, R.
Burkart, F.
Redaelli, S.
Salvachua, B.
Valentino, G.
author_sort Stancari, G.
collection CERN
description Beam-beam forces and collision optics can strongly affect beam lifetime, dynamic aperture, and halo formation in particle colliders. Extensive analytical and numerical simulations are carried out in the design and operational stage of a machine to quantify these effects, but experimental data is scarce. The technique of small-step collimator scans was applied to the Fermilab Tevatron collider and to the CERN Large Hadron Collider to study the effect of collisions on transverse beam halo dynamics. We describe the technique and present a summary of the first results on the dependence of the halo diffusion coefficient on betatron amplitude in the Tevatron and in the LHC.
id cern-1637929
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-16379292023-09-02T04:10:40Zdoi:10.5170/CERN-2014-004.83http://cds.cern.ch/record/1637929engStancari, G.Annala, G.Johnson, T.R.Previtali, V.Still, D.Assmann, R.W.Bruce, R.Burkart, F.Redaelli, S.Salvachua, B.Valentino, G.Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHCAccelerators and Storage RingsBeam-beam forces and collision optics can strongly affect beam lifetime, dynamic aperture, and halo formation in particle colliders. Extensive analytical and numerical simulations are carried out in the design and operational stage of a machine to quantify these effects, but experimental data is scarce. The technique of small-step collimator scans was applied to the Fermilab Tevatron collider and to the CERN Large Hadron Collider to study the effect of collisions on transverse beam halo dynamics. We describe the technique and present a summary of the first results on the dependence of the halo diffusion coefficient on betatron amplitude in the Tevatron and in the LHC.Beam-beam forces and collision optics can strongly affect beam lifetime, dynamic aperture, and halo formation in particle colliders. Extensive analytical and numerical simulations are carried out in the design and operational stage of a machine to quantify these effects, but experimental data is scarce. The technique of small-step collimator scans was applied to the Fermilab Tevatron collider and to the CERN Large Hadron Collider to study the effect of collisions on transverse beam halo dynamics. We describe the technique and present a summary of the first results on the dependence of the halo diffusion coefficient on betatron amplitude in the Tevatron and in the LHC.arXiv:1312.5007FERMILAB-CONF-13-054-APCFERMILAB-CONF-13-054-APCoai:cds.cern.ch:16379292013-12-17
spellingShingle Accelerators and Storage Rings
Stancari, G.
Annala, G.
Johnson, T.R.
Previtali, V.
Still, D.
Assmann, R.W.
Bruce, R.
Burkart, F.
Redaelli, S.
Salvachua, B.
Valentino, G.
Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHC
title Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHC
title_full Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHC
title_fullStr Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHC
title_full_unstemmed Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHC
title_short Measurements of the effect of collisions on transverse beam halo diffusion in the Tevatron and in the LHC
title_sort measurements of the effect of collisions on transverse beam halo diffusion in the tevatron and in the lhc
topic Accelerators and Storage Rings
url https://dx.doi.org/10.5170/CERN-2014-004.83
http://cds.cern.ch/record/1637929
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AT valentinog measurementsoftheeffectofcollisionsontransversebeamhalodiffusioninthetevatronandinthelhc

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