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arXiv · 1105.1761

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
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Abstract

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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I. V. Anikin, A. Besse, D. Yu. Ivanov, B. Pire, L. Szymanowski, S. Wallon. 2011-09-13. A phenomenological study of helicity amplitudes of high energy exclusive leptoproduction of the rho meson. https://doi.org/10.1103/physrevd.84.054004

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