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Optimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ Colliders
Direct s-channel Higgs production in e⁺e⁻ collisions is of interest if the centre-of-mass energy spread can be reduced to be comparable to the width of the standard model Higgs boson. A monochromatization scheme could be employed in order to achieve the desired reduction, by introducing a non-zero h...
Autores principales: | , |
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Lenguaje: | eng |
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2017
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.18429/JACoW-IPAC2017-WEPIK015 http://cds.cern.ch/record/2289472 |
_version_ | 1780956323655974912 |
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author | Zimmermann, Frank Valdivia García, Marco |
author_facet | Zimmermann, Frank Valdivia García, Marco |
author_sort | Zimmermann, Frank |
collection | CERN |
description | Direct s-channel Higgs production in e⁺e⁻ collisions is of interest if the centre-of-mass energy spread can be reduced to be comparable to the width of the standard model Higgs boson. A monochromatization scheme could be employed in order to achieve the desired reduction, by introducing a non-zero horizontal dispersion of opposite sign for the two colliding beams at the interaction point. In high-energy high-luminosity circular colliders, beamstrahlung may increase the energy spread and bunch length. The horizontal emittance blow up due to beamstrahlung, a new effect not present in past monochromatization proposals, may degrade the performance, especially the luminosity. We study, for the FCC-ee at 62.5 GeV beam energy, how we can optimize the IP optics parameters (betax*, Dx*) along with the number of particles per bunch so as to obtain maximum luminosity at a desired target value of the collision energy spread. |
id | oai-inspirehep.net-1626411 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2017 |
record_format | invenio |
spelling | oai-inspirehep.net-16264112019-09-30T06:29:59Zdoi:10.18429/JACoW-IPAC2017-WEPIK015http://cds.cern.ch/record/2289472engZimmermann, FrankValdivia García, MarcoOptimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ CollidersAccelerators and Storage RingsDirect s-channel Higgs production in e⁺e⁻ collisions is of interest if the centre-of-mass energy spread can be reduced to be comparable to the width of the standard model Higgs boson. A monochromatization scheme could be employed in order to achieve the desired reduction, by introducing a non-zero horizontal dispersion of opposite sign for the two colliding beams at the interaction point. In high-energy high-luminosity circular colliders, beamstrahlung may increase the energy spread and bunch length. The horizontal emittance blow up due to beamstrahlung, a new effect not present in past monochromatization proposals, may degrade the performance, especially the luminosity. We study, for the FCC-ee at 62.5 GeV beam energy, how we can optimize the IP optics parameters (betax*, Dx*) along with the number of particles per bunch so as to obtain maximum luminosity at a desired target value of the collision energy spread.IPAC-2017-WEPIK015CERN-ACC-2017-213oai:inspirehep.net:16264112017 |
spellingShingle | Accelerators and Storage Rings Zimmermann, Frank Valdivia García, Marco Optimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ Colliders |
title | Optimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ Colliders |
title_full | Optimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ Colliders |
title_fullStr | Optimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ Colliders |
title_full_unstemmed | Optimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ Colliders |
title_short | Optimized Monochromatization for Direct Higgs Production in Future Circular e⁺e⁻ Colliders |
title_sort | optimized monochromatization for direct higgs production in future circular e⁺e⁻ colliders |
topic | Accelerators and Storage Rings |
url | https://dx.doi.org/10.18429/JACoW-IPAC2017-WEPIK015 http://cds.cern.ch/record/2289472 |
work_keys_str_mv | AT zimmermannfrank optimizedmonochromatizationfordirecthiggsproductioninfuturecirculareecolliders AT valdiviagarciamarco optimizedmonochromatizationfordirecthiggsproductioninfuturecirculareecolliders |