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arXiv · 2406.01406

On the role of $J/ψ$ production in electron-ion collisions

Zexuan Chu·Jinhui Chen·Xiang-Peng Wang·Hongxi Xing
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Abstract

Within the framework of non-relativistic QCD (NRQCD) effective field theory, we study the leptoproduction of $J/ψ$ at next-to-leading order in perturbative QCD for both unpolarized and polarized electron-ion collisions. We demonstrate that the $J/ψ$-tagged deep inelastic scattering in the future Electron-Ion Collider can be served as a golden channel for the reasons including constraining NRQCD long distance matrix elements, probing the nuclear gluon distribution functions, as well as investigating the gluon helicity distribution inside a longitudinal polarized proton.

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Zexuan Chu, Jinhui Chen, Xiang-Peng Wang, Hongxi Xing. 2024-06-03. On the role of $J/ψ$ production in electron-ion collisions. https://arxiv.org/abs/2406.01406

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