On the condensate values in QCD
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The sets (3) and (4) of condensates have been compared using the QCD sum rules (2) with indefinite weight functions. A bad matching between both sets of condensates and experimental data has been obtained. The standard values (3) appear to be closer to data but some increase ofQ is necessary to improve the agreement. Only higher values ofm 0 2 could change the results of this analysis. It is interesting that negative values ofm 0 2 considerably improve the agreement with data; note that this quantity cannot be determined with a sufficient accuracy. We conclude that the QCD sum rules (2) cannot definitely determine a privileged set of condensates.
KeywordsExperimental Data Weight Function Sufficient Accuracy Indefinite Weight Indefinite Weight Function
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