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  • Letter
  • Open Access

Role of J/ψ production in electron-ion collisions

Zexuan Chu1, Jinhui Chen1,2,*, Xiang-Peng Wang3,†, and Hongxi Xing4,5,6,‡

  • 1Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200433, China
  • 2Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University, Shanghai 200438, China
  • 3Technical University of Munich, TUM School of Natural Sciences, Physics Department, James-Franck-Strasse 1, 85748 Garching, Germany
  • 4Key Laboratory of Atomic and Subatomic Structure and Quantum Control (MOE), Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, Institute of Quantum Matter, South China Normal University, Guangzhou 510006, China
  • 5Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Guangdong Provincial Key Laboratory of Nuclear Science, Southern Nuclear Science Computing Center, South China Normal University, Guangzhou 510006, China
  • 6Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences, Huizhou 516000, China

  • *Contact author: chenjinhui@fudan.edu.cn
  • †Contact author: xiangpeng.wang@tum.de
  • ‡Contact author: hxing@m.scnu.edu.cn
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Phys. Rev. D 111, L011501 – Published 23 January, 2025

DOI: https://doi.org/10.1103/PhysRevD.111.L011501

Abstract

Within the framework of nonrelativistic 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 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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Phys. Rev. D 111, L011501– Published 23 January, 2025
  • Received 15 June 2024
  • Accepted 10 December 2024
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