Electron-heavy-ion collisions at the EIC could produce di-pion events at rates thousands of times higher than electron-proton or Belle II, making them a promising new way to measure pion generalized distribution amplitudes.
Exclusive photoproduction of vector mesons in proton-lead ultraperipheral collisions at the LHC
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abstract
Rapidity distributions of vector mesons are computed in dipole model proton-lead ultraperipheral collisions(UPCs) at the CERN Larger Hadron Collider(LHC). The dipole model framework is implemented in the calculations of cross sections in the photon-hadron interaction. The bCGC model and Boosted Gaussian wave functions are employed in the scattering amplitude. We obtain predictions of rapidity distributions of $J/\psi$ meson proton-lead ultraperipheral collisions. The predictions give a good descriptions to the experimental data of ALICE. The rapidity distributions of $\phi$, $\omega$ and $\psi(2s)$ mesons in proton-lead ultraperipheral collisions are also presented in this paper.
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Di-$\pi^0$ Production and Generalized Distribution Amplitudes at Future Electron-Ion Colliders
Electron-heavy-ion collisions at the EIC could produce di-pion events at rates thousands of times higher than electron-proton or Belle II, making them a promising new way to measure pion generalized distribution amplitudes.