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Exclusive $J/\psi$ production in proton-proton collisions adopting GPD approach

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arxiv 2502.17743 v2 pith:FII3RPVF submitted 2025-02-25 hep-ph

classification hep-ph
keywords exclusivecollisionsproton-protonproductionapproachadoptingagreementapplied
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Exclusive $J/\psi$ production is investigated in proton-proton collisions employing GPD approach with GK model. Three sets gluon density are used to calculate exclusive $J/\psi$ production. The survival factors and equivalent photon approximation are applied to predict the exclusive $J/\psi$ photoproduction in proton-proton collisions. The GPD method prediction gives a good agreement with the experimental data at LHCb. The exclusive $J/\psi$ production is given in proton-proton collisions at RHIC and NICA. These predictions of GPD approach can be employed to estimate the exclusive $J/\psi$ cross sections in future proton-proton collisions.

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  1. Spin Physics at NICA SPD

    hep-ex 2026-08 conditional novelty 2.0 of 10

    The SPD experiment at NICA projects that charmonium, open charm, and prompt photon measurements will constrain gluon TMDs and halve the uncertainty on the proton's gluon helicity distribution at high x.

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