%0 Journal Article
%T QCD sum rule determination of the charm-quark mass
%A Bodenstein, S.
%A Bordes, J.
%A Dominguez, C. A.
%A Peñarrocha, J.
%A Schilcher, K.
%J Physical Review D
%D 2011
%V 83
%N 7
%I Amer Physical Soc
%@ 1550-7998
%G English
%F Bodenstein_etal2011
%O ISI:000289519700002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=604), last updated on Tue, 29 Oct 2019 08:32:57 +0000
%X QCD sum rules involving mixed inverse moment integration kernels are used in order to determine the running charm-quark mass in the (MS) over bar scheme. Both the high and the low energy expansion of the vector current correlator are involved in this determination. The optimal integration kernel turns out to be of the form p(s) = 1 -(s(0)/s)(2), where s(0) is the onset of perturbative QCD. This kernel enhances the contribution of the well known narrow resonances, and reduces the impact of the data in the range s similar or equal to 20-25 GeV2. This feature leads to a substantial reduction in the sensitivity of the results to changes in s(0), as well as to a much reduced impact of the experimental uncertainties in the higher resonance region. The value obtained for the charm-quark mass in the (MS) over bar scheme at a scale of 3 GeV is (m) over bar (c)(3 GeV) = 987 +/- 9 MeV, where the error includes all sources of uncertainties added in quadrature.
%R 10.1103/PhysRevD.83.074014
%U http://arxiv.org/abs/1102.3835
%U https://doi.org/10.1103/PhysRevD.83.074014
%P 074014-4pp