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The Practical Pomeron for High Energy Proton Collimation

We present a model which describes proton scattering data from ISR to Tevatron energies, and which can be applied to collimation n high energy accelerators, such as the LHC and FCC. Collimators remove beam halo particles, so that they do not impinge on vulnerable regions of the machine, such as the...

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Detalles Bibliográficos
Autores principales: Appleby, R.B., Barlow, R.J., Molson, J. G, Serluca, M., Toader, A.
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-016-4363-7
http://cds.cern.ch/record/2148852
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author Appleby, R.B.
Barlow, R.J.
Molson, J. G
Serluca, M.
Toader, A.
author_facet Appleby, R.B.
Barlow, R.J.
Molson, J. G
Serluca, M.
Toader, A.
author_sort Appleby, R.B.
collection CERN
description We present a model which describes proton scattering data from ISR to Tevatron energies, and which can be applied to collimation n high energy accelerators, such as the LHC and FCC. Collimators remove beam halo particles, so that they do not impinge on vulnerable regions of the machine, such as the superconducting magnets and the experimental areas. In simulating the effect of the collimator jaws it is crucial to model the scattering of protons at small momentum transfer~$t$,as these protons can subsequently survive several turns of the ring before being lost. At high energies these soft processes are well described by Pomeron exchange models. We study the behaviour of elastic and single-diffractive dissociation cross sections over a wide range of energy, and show that the model can be used as a global description of the wide variety of high energy elastic and diffractive data presently available. In particular it models low mass diffraction dissociation, where a rich resonance structure is present, and thus predicts the differential and integrated cross sections in the kinematical range appropriate to the LHC.We incorporate the physics of this model into the beam tracking code MERLIN and use it to simulate the resulting loss maps of the beam halo lost in the collimators in the LHC.
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institution Organización Europea para la Investigación Nuclear
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publishDate 2016
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spelling cern-21488522022-08-10T12:37:42Zdoi:10.1140/epjc/s10052-016-4363-7http://cds.cern.ch/record/2148852engAppleby, R.B.Barlow, R.J.Molson, J. GSerluca, M.Toader, A.The Practical Pomeron for High Energy Proton CollimationParticle Physics - PhenomenologyWe present a model which describes proton scattering data from ISR to Tevatron energies, and which can be applied to collimation n high energy accelerators, such as the LHC and FCC. Collimators remove beam halo particles, so that they do not impinge on vulnerable regions of the machine, such as the superconducting magnets and the experimental areas. In simulating the effect of the collimator jaws it is crucial to model the scattering of protons at small momentum transfer~$t$,as these protons can subsequently survive several turns of the ring before being lost. At high energies these soft processes are well described by Pomeron exchange models. We study the behaviour of elastic and single-diffractive dissociation cross sections over a wide range of energy, and show that the model can be used as a global description of the wide variety of high energy elastic and diffractive data presently available. In particular it models low mass diffraction dissociation, where a rich resonance structure is present, and thus predicts the differential and integrated cross sections in the kinematical range appropriate to the LHC.We incorporate the physics of this model into the beam tracking code MERLIN and use it to simulate the resulting loss maps of the beam halo lost in the collimators in the LHC.We present a model which describes proton scattering data from ISR to Tevatron energies, and which can be applied to collimation in high energy accelerators, such as the LHC and FCC. Collimators remove beam halo particles, so that they do not impinge on vulnerable regions of the machine, such as the superconducting magnets and the experimental areas. In simulating the effect of the collimator jaws it is crucial to model the scattering of protons at small momentum transfer t, as these protons can subsequently survive several turns of the ring before being lost. At high energies these soft processes are well described by Pomeron exchange models. We study the behaviour of elastic and single-diffractive dissociation cross sections over a wide range of energy, and show that the model can be used as a global description of the wide variety of high energy elastic and diffractive data presently available. In particular it models low mass diffraction dissociation, where a rich resonance structure is present, and thus predicts the differential and integrated cross sections in the kinematical range appropriate to the LHC. We incorporate the physics of this model into the beam tracking code MERLIN and use it to simulate the resulting loss maps of the beam halo lost in the collimators in the LHC.We present a model which describes proton scattering data from ISR to Tevatron energies, and which can be applied to collimation n high energy accelerators, such as the LHC and FCC. Collimators remove beam halo particles, so that they do not impinge on vulnerable regions of the machine, such as the superconducting magnets and the experimental areas. In simulating the effect of the collimator jaws it is crucial to model the scattering of protons at small momentum transfer~$t$,as these protons can subsequently survive several turns of the ring before being lost. At high energies these soft processes are well described by Pomeron exchange models. We study the behaviour of elastic and single-diffractive dissociation cross sections over a wide range of energy, and show that the model can be used as a global description of the wide variety of high energy elastic and diffractive data presently available. In particular it models low mass diffraction dissociation, where a rich resonance structure is present, and thus predicts the differential and integrated cross sections in the kinematical range appropriate to the LHC.We incorporate the physics of this model into the beam tracking code MERLIN and use it to simulate the resulting loss maps of the beam halo lost in the collimators in the LHC.arXiv:1604.07327oai:cds.cern.ch:21488522016-04-25
spellingShingle Particle Physics - Phenomenology
Appleby, R.B.
Barlow, R.J.
Molson, J. G
Serluca, M.
Toader, A.
The Practical Pomeron for High Energy Proton Collimation
title The Practical Pomeron for High Energy Proton Collimation
title_full The Practical Pomeron for High Energy Proton Collimation
title_fullStr The Practical Pomeron for High Energy Proton Collimation
title_full_unstemmed The Practical Pomeron for High Energy Proton Collimation
title_short The Practical Pomeron for High Energy Proton Collimation
title_sort practical pomeron for high energy proton collimation
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-016-4363-7
http://cds.cern.ch/record/2148852
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