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

Physics – High Energy Physics – High Energy Physics - Phenomenology

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20 pages, 11 figures, published version in PRD

Scientific paper

10.1103/PhysRevD.84.054004

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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