Moments of Heavy Quark Current Correlators at Four-Loop Order in Perturbative QCD

Details Moments of Heavy Quark Current Correlators at Four-Loop Order in Perturbative QCD Moments of Heavy Quark Current Correlators at Four-Loop Order in Perturbative QCD

2008-05-21

arxiv.org/abs/0805.3358v1

JHEP 0809:075,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 1 figure

Scientific paper

10.1088/1126-6708/2008/09/075

We present the result for the first moment of the scalar and axial-vector current correlator in third order of the strong coupling constant alpha_s and give the details of a recent evaluation of the pseudo-scalar correlator. The results can be used to reduce the theoretical uncertainty due to higher order corrections for the determination of fundamental parameters of QCD in the context of lattice calculations.

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