{"paper":{"title":"$ND$ and $NB$ systems in quark delocalization color screening model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Hongxia Huang, Jialun Ping, Lifang Zhao","submitted_at":"2016-12-01T17:05:57Z","abstract_excerpt":"The $ND$ and $NB$ systems with $I=0$ and $1$, $J^{P}=\\frac{1}{2}^{\\pm}$, $\\frac{3}{2}^{\\pm}$, and $\\frac{5}{2}^{\\pm}$ are investigated within the framework of quark delocalization color screening model. The results show that all the positive parity states are unbound. By coupling to the $ND^{*}$ channel, the state $ND$ with $I=0,~J^{P}=\\frac{1}{2}^{-}$ can form a bound state, which can be invoked to explain the observed $\\Sigma(2800)$ state. The mass of the $ND^{*}$ with $I=0,~J^{P}=\\frac{3}{2}^{-}$ is close to that of the reported $\\Lambda_{c}(2940)^{+}$, which indicates that $\\Lambda_{c}(294"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.00350","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":""},"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"}