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arXiv · 1611.03684

Amplitudes ratios in $\rho^0$ leptoproductions and GPDs

S. V. Goloskokov
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Abstract

We investigate exclusive leptoproduction of $\rho^0$ meson. These reactions were analyzed within the factorizing handbag approach. In our model good agreement of observables for light meson production with experimental data in a wide energy range was found. Using the model results we calculate the ratio of different helicity amplitudes for a transversely polarized proton target to the leading twist longitudinal amplitude. Our results are close to the amplitude ratios measured by HERMES.

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S. V. Goloskokov. 2016-11-11. Amplitudes ratios in $\rho^0$ leptoproductions and GPDs. https://doi.org/10.1051/epjconf%2F201713808006

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