{"paper":{"title":"$CP$ violation for $B^{0}\\rightarrow \\rho^{0}(\\omega)\\rho^{0}(\\omega) \\rightarrow \\pi^+\\pi^-\\pi^+\\pi^-$ in QCD factorization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Gang L\\\"u, Jia-Qi Lei, Ke-Wei Wei, Xin-Heng Guo, Zhen-Hua Zhang","submitted_at":"2014-05-22T04:01:14Z","abstract_excerpt":"In the QCD factorization (QCDF) approach we study the direct $CP$ violation in $\\bar{B}^{0}\\rightarrow\\rho^0(\\omega)\\rho^0(\\omega)\\rightarrow\\pi^+\\pi^-\\pi^+\\pi^-$ via the $\\rho-\\omega$ mixing mechanism. We find that the $CP$ violation can be enhanced by double $\\rho-\\omega$ mixing when the masses of the $\\pi^+\\pi^-$ pairs are in the vicinity of the $\\omega$ resonance, and the maximum $CP$ violation can reach 28{\\%}. We also compare the results from the naive factorization and the QCD factorization."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.5627","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":""},"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"}