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arXiv · 0811.2394

gamma* -> rhoT impact factor with twist three accuracy

I. V. Anikin·D. Yu. Ivanov·B. Pire·L. Szymanowski·S. Wallon
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Abstract

We evaluate the impact factor of the transition gamma* -> rhoT taking into account the twist 3 contributions. We show that a gauge invariant expression is obtained with the help of QCD equations of motion. Our results are free of end-point singularities. This opens the way to a consistent treatment of factorization for exclusive processes with a transversally polarized vector meson.

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I. V. Anikin, D. Yu. Ivanov, B. Pire, L. Szymanowski, S. Wallon. 2008-11-14. gamma* -> rhoT impact factor with twist three accuracy. https://doi.org/10.1063/1.3122219

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