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Renormalization of twist-four operators in QCD

URN to cite this document:
urn:nbn:de:bvb:355-epub-135390
Braun, Vladimir M. ; Manashov, Alexander ; Rohrwild, Jürgen
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Date of publication of this fulltext: 15 Mar 2010 13:13



Abstract

Extending the work by Bukhvostov, Frolov, Lipatov and Kuraev (BFLK) on the renormalization of quasipartonic operators we derive a complete set of two-particle renormalization group kernels that enter QCD evolution equations to twist-four accuracy. To this end we develop a new technique which essentially bypasses calculation of Feynman diagrams. It is shown that the 2→2 evolution kernels which ...

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