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Review of Recent Calculations of the Hadronic Vacuum Polarisation Contribution

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 نشر من قبل Zhiqing Zhang
 تاريخ النشر 2015
  مجال البحث
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 تأليف Zhiqing Zhang




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Recent calculations of the hadronic vacuum polarisation contribution are reviewed. The focus is put on the leading-order contribution to the muon magnetic anomaly involving $e^+e^-$ annihilation cross section data as input to a dispersion relation approach. Alternative calculation including tau data is also discussed. The $tau$ data are corrected for various isospin-breaking sources which are explicitly shown source by source.

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