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Abstract <p>It is argued that the amplitude method (direct extraction of helicity-amplitude ratios from data on vector-meson production with hard photon) has much advantages compared to the standard spin-density-matrix-element method for construction of generalized parton distributions from experimental data on nucleons.</p>

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Comparison of SDME and Amplitude Methods in Description of Vector-Meson Production

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • S. I. Manaenkov

摘要

Abstract

It is argued that the amplitude method (direct extraction of helicity-amplitude ratios from data on vector-meson production with hard photon) has much advantages compared to the standard spin-density-matrix-element method for construction of generalized parton distributions from experimental data on nucleons.