Fractal structure of near-threshold quarkonium production off cold nuclear matter

TL;DR

This paper explores the fractal nature of near-threshold quarkonium production in cold nuclear matter using a scaling theory with fixed exponents, suggesting potential universality and experimental tests at FAIR.

Contribution

It introduces a novel scaling theory with two fixed exponents to describe near-threshold quarkonium production in cold nuclear matter, extending multifractal dimensions to other mesons.

Findings

Scaling exponents fixed by existing data

Potential universality of multifractal dimensions

Testable predictions for FAIR experiments

Abstract

We investigate near-threshold production of quarkonium resonances in cold nuclear matter through a scaling theory with two exponents which are fixed by existing data on near-threshold J/psi production in proton-nucleus collisions. Interestingly, it seems possible to extend one of the multifractal dimensions to the production of other mesons in cold nuclear matter. The scaling theory can be tested and refined in experiments at the upcoming high-intensity FAIR accelerator complex in GSI.