A unitarized model integrates gluon PDF moment expansions and the QCD trace anomaly scalar form factor to describe J/psi photoproduction, yielding robust signals in cross sections and a smooth high-energy match.
Syamtomov.J/ψphotoproduction from threshold to HERA: leading-twist convolution, small- xpathology, and eikonal unitarization
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Unitarized Matching of Gluon PDF Moments and the QCD Trace Anomaly in Near-Threshold $J/\psi$ Photoproduction
A unitarized model integrates gluon PDF moment expansions and the QCD trace anomaly scalar form factor to describe J/psi photoproduction, yielding robust signals in cross sections and a smooth high-energy match.