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Direct measurement of αQED(m 2 Z ) at the FCC-ee
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  • Regular Article - Experimental Physics
  • Open Access
  • Published: 08 February 2016

Direct measurement of αQED(m 2 Z ) at the FCC-ee

  • Patrick Janot1 

Journal of High Energy Physics volume 2016, Article number: 53 (2016) Cite this article

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An Erratum to this article was published on 24 November 2017

This article has been updated

A preprint version of the article is available at arXiv.

Abstract

When the measurements from the FCC-ee become available, an improved determination of the standard-model “input” parameters will be needed to fully exploit the new precision data towards either constraining or fitting the parameters of beyond-the-standard-model theories. Among these input parameters is the electromagnetic coupling constant estimated at the Z mass scale, αQED(m 2 Z ). The measurement of the muon forwardbackward asymmetry at the FCC-ee, just below and just above the Z pole, can be used to make a direct determination of αQED(m 2 Z ) with an accuracy deemed adequate for an optimal use of the FCC-ee precision data.

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  • 24 November 2017

    An erratum to this article has been published.

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  1. CERN, EP Department, Geneva, Switzerland

    Patrick Janot

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  1. Patrick Janot
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Correspondence to Patrick Janot.

Additional information

ArXiv ePrint: 1512.05544

An erratum to this article is available at https://doi.org/10.1007/JHEP11(2017)164.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Cite this article

Janot, P. Direct measurement of αQED(m 2 Z ) at the FCC-ee. J. High Energ. Phys. 2016, 53 (2016). https://doi.org/10.1007/JHEP02(2016)053

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  • Received: 08 January 2016

  • Accepted: 26 January 2016

  • Published: 08 February 2016

  • DOI: https://doi.org/10.1007/JHEP02(2016)053

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Keywords

  • Electroweak interaction
  • e+-e- Experiments
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