The role of the quark and gluon GPDs in hard vector-meson electroproduction
S.V. Goloskokov (JINR), P. Kroll (Wuppertal Univ.)
TL;DR
This paper investigates how quark and gluon generalized parton distributions influence the electroproduction of light vector mesons, extending previous analyses to include transverse observables and comparing results with experimental data.
Contribution
It introduces a comprehensive analysis of vector meson electroproduction using GPDs from CTEQ6 and extends prior work to cover transverse cross sections and related observables.
Findings
Extended analysis to transverse cross sections
Constructed GPDs from CTEQ6 PDFs
Results align with recent experimental data
Abstract
Electroproduction of light vector mesons is analyzed on the basis of handbag factorization. The required generalized parton distributions are constructed from the CTEQ6 parton distributions with the help of double distributions. The partonic subprocesses are calculated within the modified perturbative approach. The present work extends our previous analysis of the longitudinal cross section to the transverse one and other observables related to both the corresponding amplitudes. Our results are compared to recent experimental findings in detail.
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