Precise Charm and Bottom quark masses
Johann H. Kuhn, Matthias Steinhauser, Christian Sturm
TL;DR
This paper determines precise charm and bottom quark masses using new experimental data and advanced four-loop theoretical calculations, resulting in more accurate ar;MS} mass values.
Contribution
It provides the most precise ar;MS} masses for charm and bottom quarks by combining new data with improved theoretical analysis including recent four-loop calculations.
Findings
ar;MS} charm quark mass: 0.986(13) GeV
ar;MS} bottom quark mass: 3.609(25) GeV
Results are more precise than previous studies.
Abstract
New data for the total cross section sigma(e^+e^- --> hadrons) in the charm and bottom threshold region are combined with an improved theoretical analysis, which includes recent four-loop calculations, to determine the short distance \bar{MS} charm and bottom quark masses. The final result for the \bar{MS}-masses, m_c(3 GeV)=0.986(13) GeV and m_b(10 GeV)=3.609(25) GeV is consistent with but significantly more precise than a similar previous study.
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