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Soft-collinear resummation in deeply virtual Compton scattering
classification
✦ hep-ph
hep-exhep-thnucl-exnucl-th
keywords
comptondeeplyresummationscatteringvirtualaccountalphasamplitude
read the original abstract
We derive an all order resummation formula for the deeply virtual Compton scattering (DVCS) amplitude, which takes into account soft gluon exchanges in the non-singlet quark coefficient function. We identify the ladder diagrams responsible in light-like gauge for [alphaS log^2 (x +/- xi)]^n contributions. The resummed series results in a simple closed expression.
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