Wandzura-Wilczek approximation from generalized rotational invariance

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dc.creatorAnikin, I. V.
dc.creatorTeryaev, O. V.
dc.date2001-02-16
dc.date2001-02-18
dc.date.accessioned2026-07-07T11:47:27Z
dc.date.available2026-07-07T11:47:27Z
dc.descriptionWe present the alternative way of derivation of the Wandzura-Wilczek relations between the kinematical twist-3 and twist-2 functions, parameterizing hadronic matrix element in two-photon processes $γ^{\star}π\to γπ$ and $γ^{\star}γ\toππ$. The new equations, providing the independence of the physical cross-sections on the choice of the light-cone direction, are suggested and explored. The amplitude of $γ^{\star}γ\toππ$ up to genuine twist-3 accuracy is found.
dc.description14 pages, Latex
dc.identifierhttps://arxiv.org/abs/hep-ph/0102209
dc.identifierhttp://arxiv.org/abs/hep-ph/0102209
dc.identifierPhys.Lett.B509:95-105,2001
dc.identifierdoi:10.1016/S0370-2693(01)00555-X
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202575
dc.subjectHigh Energy Physics - Phenomenology
dc.titleWandzura-Wilczek approximation from generalized rotational invariance
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