{"paper":{"title":"Semileptonic decays of doubly charmed baryons with $\\Xi_c-\\Xi_c'$ mixing","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Ao-Wen Zhou, Chao-Qiang Geng, Chia-Wei Liu, Xian-Nan Jin, Xiao Yu","submitted_at":"2022-12-06T13:42:50Z","abstract_excerpt":"We study the $\\Xi_c- \\Xi_c'$ mixing effects in the semileptonic decays the doubly charm baryons of $\\Xi_{cc}$. We focus on the ratio of ${\\cal R}(\\theta_c) \\equiv {\\cal B}( \\Xi_{cc} \\to \\Xi_c' e^+ \\nu_e)/ {\\cal B}( \\Xi_{cc} \\to \\Xi_c e^+ \\nu_e) $ and find that $({\\cal R}(\\theta_0),{\\cal R}(- \\theta_0)) =(0.46 \\pm 0.01,7.33 \\pm 0.23)$ with $\\theta_0 = 0.137\\pi$, which are in sharp contrast to ${\\cal R}(0)=2.15\\pm0.11$ without the mixing. The ratio is enhanced~(suppressed) by a factor of four for a negative~(positive) $\\theta_c$. In addition, the polarization asymmetries of $\\Xi_c^{(\\prime)}$ ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.02971","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/2212.02971/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"}