期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1088/1126-6708/2008/09/075
关键词
NLO computations; strong coupling expansion; QCD
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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