{"paper":{"title":"$\\Lambda _{c}^{+}(2940)$ photoproduction off the neutron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alexey Guskov, Xiao-Yun Wang, Xu-Rong Chen","submitted_at":"2015-09-09T02:00:53Z","abstract_excerpt":"By assuming that the $\\Lambda _{c}^{\\ast }(2940)$ is a $pD^{\\ast 0}$ molecular state with spin-parity $J^{P}=\\frac{1}{2}^{+}$ and $J^{P}=\\frac{1}{2}^{-}$, the photoproduction of charmed $\\Lambda _{c}^{\\ast }(2940)$ baryon in the $\\gamma n\\rightarrow D^{-}\\Lambda _{c}^{\\ast }(2940)^{+}$ process is investigated with an effective Lagrangian approach. It is found that the contributions from $t$-channel with $D^{\\ast }$ exchange are dominant, while the $s$-channel with nucleon pole exchange give a sizeable contribution around the threshold. The contributions from the $u$-channel and contact term ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.02602","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":""},"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"}