{"paper":{"title":"$e^+ e^- \\to \\Lambda^+_c \\bar{\\Lambda}^-_c$ cross sections and the $\\Lambda_c^+$ electromagnetic form factors within the extended vector meson dominance model","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Bing Yan, Cheng Chen, Ju-Jun Xie","submitted_at":"2023-12-28T00:14:46Z","abstract_excerpt":"Within the extended vector meson dominance model, we investigate the $e^+ e^- \\to \\Lambda^+_c \\bar{\\Lambda}^-_c$ reaction and the electromagnetic form factors of the charmed baryon $\\Lambda_c^+$. The model parameters are determined by fitting them to the cross sections of the process $e^+e^-\\rightarrow \\Lambda_c^+ \\bar{\\Lambda}_c^-$ and the magnetic form factor $|G_M|$ of $\\Lambda^+_c$. By considering four charmoniumlike states, called $\\psi(4500)$, $\\psi(4660)$, $\\psi(4790)$, and $\\psi(4900)$, we can well describe the current data on the $e^+ e^- \\to \\Lambda^+_c \\bar{\\Lambda}^-_c$ reaction fr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.16753","kind":"arxiv","version":2},"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/2312.16753/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"}