Geodesic
Prompt polarized $J/\psi$ production at NICA within NRQCD and generalized parton model
Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, Tome 30 (2024) no. 1, pp. 96-111

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In our work we consider prompt $J/\psi$ and $\psi'$ production within the approaches of nonrelativistic quantum chromodynamics and generalized parton model. We use various experimental data ($\sqrt{s} = 200$ GeV and $\sqrt{s} = 19.4$ GeV) of charmonium production to fit octet nonperturbative matrix elements and averaged values of initial partons' transverse momenta. Further, we make evaluation with the extracted parameters and predict $J/\psi$ production cross section and polarization of $J/\psi$ and $\psi'$ at NICA collider energy $\sqrt{s}=27$ GeV.
Keywords: high energy physics, quantum chromodynamics, spin, polarization, nonrelativistic quantum chromodynamics, collinear parton model, generalized parton model, SPD NICA.
Mots-clés : charmoium 
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     author = {A. V. Karpishkov and V. A. Saleev and K. K. Shilyaev},
     title = {Prompt polarized $J/\psi$ production at {NICA} within {NRQCD} and generalized parton model},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
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     year = {2024},
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     url = {http://geodesic.mathdoc.fr/item/VSGU_2024_30_1_a7/}
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A. V. Karpishkov; V. A. Saleev; K. K. Shilyaev. Prompt polarized $J/\psi$ production at NICA within NRQCD and generalized parton model. Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, Tome 30 (2024) no. 1, pp. 96-111. http://geodesic.mathdoc.fr/item/VSGU_2024_30_1_a7/