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The possibility to study in-medium modification of $J/\psi$ mesons from their photoproduction on nuclei near threshold in the case of presence of the LHCb pentaquark states $P^+_c$ in this photoproduction
We study the $J/\psi$ photoproduction from nuclei in the near-threshold beam energy region of $E_{\gamma}$=5--11 GeV within the nuclear spectral function approach by considering incoherent direct (${\gamma}N \to {J/\psi}N$) and two-step (${\gamma}p \to P^+_c(4312)$, $P^+_c(4312) \to {J/\psi}p$; ${\g...
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| Lenguaje: | eng |
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2020
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| Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysa.2020.121711 http://cds.cern.ch/record/2759254 |