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arxiv: 1105.1761 · v2 · pith:KBEKH7SUnew · submitted 2011-05-09 · ✦ hep-ph · hep-ex

A phenomenological study of helicity amplitudes of high energy exclusive leptoproduction of the rho meson

I.V.Anikin , A.Besse , D.Yu.Ivanov , B.Pire , L.Szymanowski , S.Wallon This is my paper
classification ✦ hep-ph hep-ex
keywords amplitudeshelicitymesondataenergyexclusivehighleptoproduction
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We apply a previously developed scheme to consistently include the twist-3 distribution amplitudes for transversely polarized rho meson in order to evaluate, in the framework of kT factorization, the helicity amplitudes for exclusive leptoproduction of a light vector meson, at leading order in alphaS. We compare our results with high energy experimental data for the ratios of helicity amplitudes T11/T00 and T01/T00 and get a good description of the data.

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