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    TH Meeting on Particle Physics Phenomenology

    Precise quark masses: why and how

    by Kuehn, J. (University of Karlsruhe)

    → Europe/Zurich
    TH Auditorium (CERN)

    TH Auditorium

    CERN
    Description
    After a brief motivation for a precise determination of quark masses, we present new results for charm and bottom quarks, based on the SVZ-sum rules. The significant improvement with a remaining error of 13 MeV and 25 MeV respectively is due to a recent four-loop calculation of the vacuum polarisation function and an update of the experimental input.