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A. Palameta

As seen in: Physical Review B
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Applications of diagrammatic renormalization methods in QCD sum-rules

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By D. Harnett, T. de Oliveira, A. Palameta
| Physical Review B
Abstract In QCD sum-rule methods, the fundamental field-theoretical quantities are correlation functions of composite operators that serve as hadronic interpolating fields. One of the challenges of loop corrections to QCD correlation functions in conventional approaches is the renormalization-induced mixing of composite operators. This involves a multi-step process of first renormalizing the operators, and then calculating the correlation functions in this mixed basis.
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