{"paper":{"title":"Can the $\\psi(4040)$ explain the peak associated with $Y(4008)$?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Francesco Giacosa, Milena Piotrowska, Peter Kovacs","submitted_at":"2018-10-08T14:33:19Z","abstract_excerpt":"We study the well-known resonance $\\psi(4040)$, corresponding to a $3^{3}S_{1}$ charm-anticharm vector state $\\psi(3S)$, within a QFT approach, in which the decay channels into $DD$, $D^{\\ast}D$, $D^{\\ast}D^{\\ast}$, $D_{s}D_{s}$ and $D_{s}^{\\ast}D_{s}$ are considered. The spectral function shows sizable deviations from a Breit-Wigner shape (an enhancement, mostly generated by $DD^{\\ast}$ loops, occurs); moreover, besides the $c\\bar{c}$ pole of $\\psi(4040)$, a second dynamically generated broad pole at $4$ GeV emerges. Naively, it is tempting to identify this new pole with the unconfirmed state"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.03495","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"}