{"paper":{"title":"Simultaneous description of the $e^+e^- \\to J/ \\psi \\, \\pi \\pi\\, (K \\bar{K})$ processes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Daniel A. S. Molnar, Igor Danilkin, Marc Vanderhaeghen","submitted_at":"2020-04-28T13:31:12Z","abstract_excerpt":"In this work, we provide a simultaneous and accurate description of the $\\pi^+\\pi^-$ and $\\pi^{\\pm} J/\\psi$ invariant mass distributions of the recent BESIII data on $e^+ e^- \\to J/\\psi \\; \\pi^+ \\pi^-$ together with the $e^+ e^- \\to J/\\psi \\; K^+K^-$ cross sections at $e^+e^-$ center-of-mass energies $q=4.23$ GeV and $q=4.26$ GeV. The rescattering effects between pions in the S and D-waves are taken into account through the Muskhelishvili-Omn\\`es formalism. Since the physical region of the $\\pi\\pi$ invariant mass extends above 1 GeV, the important $K\\bar{K}$ intermediate state in the S-wave is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.13499","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.13499/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}