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Two-photon processes in conformal QCD: resummation of the descendants of leading-twist operators

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Braun, V. M. ; Ji, Yao ; Manashov, A. N.
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 01 Apr 2021 09:42


Using some techniques of conformal field theories, we find a closed expression for the contribution of leading twist operators and their descendants, obtained by adding total derivatives, to the operator product expansion (OPE) of two electromagnetic currents in QCD. Our expression resums contributions of all twists and to all orders in perturbation theory up to corrections proportional to the ...


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