Updated analysis of near-threshold heavy quarkonium production for probe of proton's gluonic gravitational form factors

Abstract

There has been growing interest in the near-threshold production of heavy quarkonium which can access the gluonic structure in the nucleon. Previously we studied this process with quantum chromodynamics (QCD) and showed that it can be factorized with the gluon generalized parton distributions (GPDs) in the heavy quark limit. We further argued that the hadronic matrix element is dominated by its leading moments corresponding to the gluonic gravitational form factors (GFFs) in this limit. Since then, there have been many new developments on this subject. More experimental measurements have been made and published, and the lattice simulation of gluonic GFFs has been improved as well. In this work, we make an important revision to a previous result and perform an updated analysis with the new inputs. We also study the importance of the large momentum transfer to extract these gluonic structures reliably in this framework.

arXiv comment8 figures, 2 tables

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Cited by in corpus (15)

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• Dominance of gluonic scale anomaly in confining pressure inside nucleon and D-term
• Dispersive Determination of Nucleon Gravitational Form Factors
• Photoproduction of fully charmed tetraquark at electron-ion colliders
• Gravitational form factor $D$ of charmonium from shear stress
• Stress out of charmonia
• Gravitational form factors of the nucleon in the Skyrme model based on scale-invariant chiral perturbation theory
• Photo-production of ${\eta }_{c,b}$ near Threshold
• Exclusive Charmonium Production at the Electron-ion collider in China
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