{"paper":{"title":"Search for a $D \\bar{D}$ bound state in the $\\Lambda_b \\rightarrow \\Lambda D\\bar{D}$ process","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"De-Min Li, En Wang, Hong-Shen Li, Ju-Jun Xie, Le-Le Wei, Yu-Xiao Li","submitted_at":"2021-02-07T02:58:24Z","abstract_excerpt":"We have investigated the process of $\\Lambda_b\\to \\Lambda D\\bar{D}$, by taking into account the contributions from the $s$-wave $D\\bar{D}$ interaction within the coupled-channel unitary approach, and the intermediate $\\psi(3770)$ resonance. In addition to the peak of the $\\psi(3770)$, an enhancement near the $D\\bar{D}$ mass threshold is found in the $D\\bar{D}$ invariant mass distributions, which should be the reflection of the $D\\bar{D}$ bound state. We would like to encourage our experimental colleagues to measure the $D\\bar{D}$ invariant mass distribution of the $\\Lambda_b\\to \\Lambda D\\bar{D"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.03704","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/2102.03704/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"}