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Infrared Factorization, Wilson Lines and the Heavy Quark Limit

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arxiv hep-ph/9203222 v1 pith:ULS7RHXF submitted 1992-03-27 hep-ph

G.P.Korchemsky , A.V.Radyushkin This is my paper
classification hep-ph
keywords quarkcuspfieldfunctionheavyinfraredlinesproperties
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

It is shown that, in QCD, the same universal function $\Gamma_{cusp}(\vartheta, \alpha_\s)$ determines the infrared behaviour of the on-shell quark form factor, the velocity-dependent anomalous dimension in the heavy quark effective field theory (HQET) and the renormalization properties of the vacuum averaged Wilson lines with a cusp. It is demonstrated that a combined use of the methods developed in the relevant different branches of quantum field theory essentially facilitates the all-order study of the asymptotic and analytic properties of this function.

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Cited by 3 Pith papers

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