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标题：Quark-hadron duality violation in QCD Sum Rules with hadronic τ data
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作者：M. Gonzalez-Alonso ; A. Pich ; J. Prades 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2010
卷号：2010
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We study the Quark-Hadron Duality Violation in Finite Energy Sum Rules (FESRs) with the LR correlator, through an analysis of the possible high-energy behavior of the LR spectral function, taking into account the experimental hadronic t -decay data and the known short-distance constraints. We show that the pinched weights allow to determine with precision the dimension six and eight contributions in the Operator-Product Expansion, O6 = 􀀀−4.3+0.9 −0.7· 10−3 GeV6 and O8 = 􀀀−7.2+4.2 −5.3· 10−3 GeV8 [1, 2].