Production of the exclusive γγ→ J/ψ+γ process in proton-proton ultraperipheral collisions

2025/10/11 by Jia, Meng-Kun, Jin, Xiao-Bo, Liu, Kui-Yong +1
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2510.10318

Abstract

In this work, we present a next-to-leading-order (NLO) study of J/ψ+ γ production via photon-photon fusion in proton-proton ultraperipheral collisions (UPCs) at √s_NN = 14 TeV. The calculation is performed within the nonrelativistic Quantum Chromodynamics (NRQCD) framework, where we employ photon parton distribution functions derived from the proton's electric-dipole form factor (EDFF) and explicitly retain their dependence on the impact parameter b. Our calculation yields cross sections of 155 fb at leading order and between 107.5 fb and 130 fb at NLO in α_s, demonstrating a moderate but manageable α_s suppression. Despite this reduction, the process retains a sufficiently large cross section to be observable in future high-luminosity measurements.

Citations

• Charmonia Production in Hot QCD Matter and Electromagnetic Fields
• Path integral treatment of coherence effects in charmonium production in nuclear ultra-peripheral collisions
• Opportunities for new physics searches with heavy ions at colliders
• New physics searches with heavy-ion collisions at the CERN Large Hadron Collider
• Future physics opportunities for high-density QCD at the LHC with heavy-ion and proton beams
• Heavy ions at the Future Circular Collider
• Concurrent Cuba
• Reduze 2 - Distributed Feynman Integral Reduction
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• New features of FORM

Related

• Exclusive J/ψ+γ production in ultraperipheral ion collisions
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• The J/ψ production in PbPb ultraperipheral collisions at √s_NN=2.76TeV
• Charmonium pair production in ultraperipheral collision
• Next-to-leading order analysis of J/ψ+ γ production in photon-photon collisions at CEPC