FCC-ee: Energy calibration

The FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the centre-of-mass energy when operating at the Z peak and WW threshold. This can be achiev...

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Detalles Bibliográficos
Autores principales: Koratzinos, M., Blondel, A., Gianfelice-Wendt, E., Zimmermann, F.
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2015-TUPTY063
http://cds.cern.ch/record/2021444
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author Koratzinos, M.
Blondel, A.
Gianfelice-Wendt, E.
Zimmermann, F.
author_facet Koratzinos, M.
Blondel, A.
Gianfelice-Wendt, E.
Zimmermann, F.
author_sort Koratzinos, M.
collection CERN
description The FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the centre-of-mass energy when operating at the Z peak and WW threshold. This can be achieved by making systematic use of resonant depolarization. A number of issues have been identified, due in particular to the long polarization times. However the smaller emittance and energy spread of FCC-ee with respect to LEP should help achieve a much improved performance.
id cern-2021444
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-20214442022-08-10T13:00:39Zdoi:10.18429/JACoW-IPAC2015-TUPTY063http://cds.cern.ch/record/2021444engKoratzinos, M.Blondel, A.Gianfelice-Wendt, E.Zimmermann, F.FCC-ee: Energy calibrationAccelerators and Storage RingsThe FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the centre-of-mass energy when operating at the Z peak and WW threshold. This can be achieved by making systematic use of resonant depolarization. A number of issues have been identified, due in particular to the long polarization times. However the smaller emittance and energy spread of FCC-ee with respect to LEP should help achieve a much improved performance.FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of an MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the centre-of-mass energy when operating at the Z peak and WW threshold. This contribution will describe how it is planned to achieve this, by making systematic use of resonant depolarization. A number of difficulties have been identified, due in particular to the long polarization time and amplified ground motion. However the smaller emittance and energy spread of FCC-ee with respect to LEP should help achieve a much improved performance.The FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of MeV on the W mass. Compared to LEP, this implies a much improved knowledge of the centre-of-mass energy when operating at the Z peak and WW threshold. This can be achieved by making systematic use of resonant depolarization. A number of issues have been identified, due in particular to the long polarization times. However the smaller emittance and energy spread of FCC-ee with respect to LEP should help achieve a much improved performance.arXiv:1506.00933IPAC-2015-TUPTY063FERMILAB-CONF-15-273-ADTUPTY063CERN-ACC-2015-371oai:cds.cern.ch:20214442015-06-02
spellingShingle Accelerators and Storage Rings
Koratzinos, M.
Blondel, A.
Gianfelice-Wendt, E.
Zimmermann, F.
FCC-ee: Energy calibration
title FCC-ee: Energy calibration
title_full FCC-ee: Energy calibration
title_fullStr FCC-ee: Energy calibration
title_full_unstemmed FCC-ee: Energy calibration
title_short FCC-ee: Energy calibration
title_sort fcc-ee: energy calibration
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2015-TUPTY063
http://cds.cern.ch/record/2021444
work_keys_str_mv AT koratzinosm fcceeenergycalibration
AT blondela fcceeenergycalibration
AT gianfelicewendte fcceeenergycalibration
AT zimmermannf fcceeenergycalibration

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