{"paper":{"title":"Magic mixing angles for doubly heavy baryons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Dian-Yong Chen, Qi-Fang L\\\"u, Takayuki Matsuki, Xiang Liu","submitted_at":"2021-08-12T10:15:22Z","abstract_excerpt":"We study the so-called magic mixing angles for doubly heavy baryons. Defining that a magic mixing angle rotates states with definite $^{2S+1}(l_\\lambda)_J$ to make them heavy-quark symmetric states, we derive the magic mixing angle only in the case $L_\\rho=0$ between the heavy quark symmetric states with quantum numbers $\\left(J, j_\\ell\\right)$ and the states with $\\left(J, s_q+j_\\rho\\right)=\\left(J, \\{^4l_\\lambda/^2l_\\lambda\\}\\right)$ for a doubly heavy baryon in the standard $\\rho-\\lambda$ configuration, where $\\vec j_\\ell=\\vec l_\\lambda+\\vec s_q$, $\\vec s_\\rho=\\vec s_{Q1}+\\vec s_{Q2}$, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.05642","kind":"arxiv","version":3},"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/2108.05642/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"}