{"paper":{"title":"Baryonium with a phenomenological skyrmion-type potential","license":"","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th","quant-ph"],"primary_cat":"hep-ph","authors_text":"Bin Wu, Bo-Qiang Ma, Mu-Lin Yan, Si Li","submitted_at":"2004-05-10T23:12:31Z","abstract_excerpt":"In this paper, we investigate the nucleon-antinucleon static energies in the Skyrme model with the product {\\it Anzatz}. The calculation shows that in the ungroomed $S\\bar S$ (skyrmion and antiskyrmion) channel, which leads to rapid annihilation, there exists a quasi-stable bound state which may give a natural explanation for the near-threshold enhancement in the proton-antiproton $(p\\bar{p})$ mass spectrum reported by the BES Collaboration and the Belle Collaboration. Similar to the phenomenological well potential of the deuteron, we construct a phenomenological skyrmion-type potential to stu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0405087","kind":"arxiv","version":4},"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"}