Sullivan process near threshold and the pion gravitational form factors

2025/02/17 by Yoshitaka Hatta, Hatta, Yoshitaka, Jakob Schoenleber +1 · 4 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum chaos and dynamical systems

paper · pdf · doi:10.48550/arxiv.2502.12061

openalex publication_date 2025/02/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose a novel method to experimentally access the gravitational form factors (GFFs) of the charged pion π⁺ through the Sullivan process in electron-proton scattering. We demonstrate that the cross sections of J/ψ-photoproduction and ϕ-electroproduction near the respective thresholds are dominated by the gluon GFF of the pion to next-to-leading order in perturbative QCD. We predict cross sections for the Electron-Ion Collider and the Jefferson Lab experiments.

Cited by

• Generalized parton distributions and gravitational form factors at large momentum transfer
• Scale-anomaly-induced binding pressure in hadrons
• Gravitational form factors of the nucleon in the Skyrme model based on scale-invariant chiral perturbation theory
• Scalar-glueball-mediated scale-anomaly dominance of the confining pressure of the pion in holographic QCD

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