Genuine twist 3 in exclusive electroproduction of transversely polarized vector mesons - Archive ouverte HAL
Article Dans Une Revue Physics Letters B Année : 2003

Genuine twist 3 in exclusive electroproduction of transversely polarized vector mesons

Résumé

We present the detailed analysis of genuine twist-3 contributions to the exclusive electroproduction amplitude of transversely polarized vector mesons. Using the formalism based on the QCD factorization in the momentum representation we calculated all the genuine twist-3 terms and found the total expression of this amplitude at 1/Q level. Generally speaking, these terms violate standard factorization owing to the existence of the infrared divergencies in the amplitude of hard sub-processes, although the strongest divergencies cancel due to the QCD equations of motion. We discuss the possible treatment of surviving divergencies.

Dates et versions

hal-00009489 , version 1 (04-10-2005)

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Citer

I. V. Anikin, O. V. Teryaev. Genuine twist 3 in exclusive electroproduction of transversely polarized vector mesons. Physics Letters B, 2003, 554, pp.51-63. ⟨hal-00009489⟩
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