Precise Determinations of the Charm and Bottom Quark Masses

Abstract

A finite-energy sum-rule is presented that allows for the use of combinations of both positive- and inverse-moment integration kernels. The freedom afforded from being able to employ this large class of integration kernels in our sum-rule is then exploited to obtain the values of the charm and bottom masses with minimum total uncertainty. We obtain as our final results m_c(3 GeV)=986(13) MeV and m_b(10 GeV)=3617(25) MeV, which are amongst the most precise values of these parameters obtained by any method.

Comments: Talk given at the International Workshop on Determination of the Fundamental Parameters of QCD. To be published in Mod. Phys. Lett. A