{"paper":{"title":"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","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"E. Ya. Paryev","submitted_at":"2020-03-02T12:05:51Z","abstract_excerpt":"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 (${\\gamma}p \\to P^+_c(4312)$, $P^+_c(4312) \\to {J/\\psi}p$; ${\\gamma}p \\to P^+_c(4440)$, $P^+_c(4440) \\to {J/\\psi}p$; ${\\gamma}p \\to P^+_c(4457)$, $P^+_c(4457) \\to {J/\\psi}p$) $J/\\psi$ production processes. We calculate the absolute excitation functions for the non-resonant and resonant production of $J/\\psi$ mesons off $^{12}$C and $^{208}$Pb target nuclei with"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.00788","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2003.00788/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}