# NLO corrections to the deeply virtual meson production revisited: impact on the extraction of generalized parton distributions

**Authors:** Marija Čuić, Goran Duplančić, Krešimir Kumerički, Kornelija Passek-K.  
**arXiv:** [2310.13837](https://arxiv.org/abs/2310.13837)  
**Date:** 2023-10-20  
**Summary page:** https://www.summarizepaper.com/fr/arxiv-id/2310.13837v1/

## Abstract

We revisit the next-to-leading order (NLO) perturbative QCD corrections for the deeply virtual meson production (DVMP) process, exploring its phenomenology both in isolation and in a multichannel fit combined with deeply virtual Compton scattering (DVCS). Our approach involves the conformal partial wave (CPaW) formalism, which allows for the straightforward inclusion of higher-order contributions and evolutionary effects. Our findings indicate that a description of the longitudinal component of the vector meson DVMP cross-section at high energies is achievable only at NLO within the standard collinear approach. Furthermore, we demonstrate a simultaneous description of DIS, DVCS, and DVMP processes, providing insights into the proton structure described at NLO by unique universal generalized parton distribution (GPD) functions.