{"paper":{"title":"Deeply bound dibaryon $d^*(2380)$ from meson-exchange saturation $\\Delta\\Delta$ effective field theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Chinadanai Bubpatate, Daris Samart, Prin Sawasdipol","submitted_at":"2026-05-29T17:47:15Z","abstract_excerpt":"We propose an RG-improved effective-field-theory framework for the deeply bound dibaryon $d^*(2380)$, a $\\Delta\\Delta$ bound state in the $(J,I)=(3,0)$ ${}^7S_3$ channel. Its binding momentum $\\gamma\\simeq 320$ MeV gives $\\gamma/m_\\pi\\simeq 2.3$, indicating the need to re-organize the short-range dynamics beyond a formal pionless EFT. We match the large-$N_c$-constrained pionless contact potential to a meson-exchange-saturated contact interaction in which the $\\sigma,\\rho,\\omega$ dynamics are integrated out at the hadronic scale $m_V$, yielding the controlled expansion parameter $\\gamma/m_V\\si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.31578","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.31578/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"}