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- W3048778054 abstract "Heavy quarkonium production in ultra-peripheral nuclear collisions (UPC) is described within the QCD dipole formalism. Realistic quarkonium wave functions in the $Qbar Q$ rest frame are calculated by solving the Schrodinger equation with a subsequent Lorentz boost to high energy. We rely on several realistic $Qbar Q$ potentials, which allow to describe well the quarkonium masses and decay widths, as well as data on diffractive electroproduction of quarkonia on protons. Nuclear effects are calculated with the phenomenological dipole cross sections fitted to DIS data. The higher twist quark shadowing related to the lowest $Qbar Q$ Fock component of the photon, as well as the leading twist gluon shadowing, related to higher components containing gluons, are included. The results for coherent and incoherent photoproduction of charmonia and bottomonia in UPC of heavy nuclei are in good accord with available data from the LHC. They can also be verified in future experiments at electron-ion colliders." @default.
- W3048778054 created "2020-08-18" @default.
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- W3048778054 date "2020-08-12" @default.
- W3048778054 modified "2023-09-24" @default.
- W3048778054 title "Ultra-peripheral nuclear collisions as a source of heavy quarkonia" @default.
- W3048778054 doi "https://doi.org/10.48550/arxiv.2008.05116" @default.
- W3048778054 hasPublicationYear "2020" @default.
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