{"paper":{"title":"$X(1835)$ and the New Resonances $X(2120)$ and $X(2370)$ Observed by the BES Collaboration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Gui-Jun Ding, Jia-Feng Liu, Mu-Lin Yan","submitted_at":"2010-08-02T07:44:10Z","abstract_excerpt":"We calculate the decay widths of both the second and the third radial excitations of $\\eta$ and $\\eta'$ within the framework of $^3P_0$ model. After comparing the theoretical decay widths and decay patterns with the available experimental data of $\\eta(1760)$, $X(1835)$, $X(2120)$ and $X(2370)$, we find that the interpretation of $\\eta(1760)$ and $X(1835)$ as the second radial excitation of $\\eta$ and $\\eta'$ crucially depends on the measured mass and width of $\\eta(1760)$, which is still controversial experimentally. We suggest that there may be sizable $p\\bar{p}$ content in $X(1835)$. $X(212"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.0246","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"}