Abstract
Precision measurements of mathrm {Z^0} boson properties could enable a determination of the mass of the b quark at the scale of the mathrm {Z^0} boson mass m_{mathrm {b}}(m_{mathrm {Z^0}}). The dependence of Standard Model predictions on the b quark mass using the program Gfitter is studied. The precision of the currently available measurements by the LEP experiments and SLD, together with measurements from the LHC experiments of the mass of the top quark and the Higgs boson, is not sufficient for a relevant determination. The predicted precision of mathrm {Z^0} boson resonance measurements at future mathrm {e^+e^-} colliders will allow a competitive direct determination of m_{mathrm {b}}(m_{mathrm {Z^0}}).
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