Universality in the Electroproduction of Vector Mesons

TL;DR

This paper demonstrates a universal behavior in the electroproduction of vector mesons using a nonperturbative approach, revealing a universal reduced cross section and suggesting a finite infrared strong coupling.

Contribution

It introduces a unified nonperturbative framework that isolates meson-specific factors, leading to a universal reduced cross section in vector meson electroproduction.

Findings

Universal reduced elastic cross section observed

Supports finite infrared behavior of strong coupling

Framework accurately reproduces experimental data

Abstract

We study universality in the electroproduction of vector mesons using a unified nonperturbative approach which has already proved to reproduce extremely well the available experimental data. In this framework, after the extraction of factors that are specific of each vector meson, we arrive at a reduced integrated elastic cross section which is universal. Our calculations suggest a finite infrared behavior for the strong coupling constant.