{"paper":{"title":"$CP$ violation induced by the double resonance for pure annihilation decay process in Perturbative QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Gang L\\\"u, Sheng-Tao Li, Ye Lu, Yu-Ting Wang","submitted_at":"2017-01-08T15:07:15Z","abstract_excerpt":"In Perturbative QCD (PQCD) approach we study the direct $CP$ violation in the pure annihilation decay process of $\\bar{B}^0_{s}\\rightarrow\\pi^+\\pi^-\\pi^+\\pi^-$ induced by the $\\rho$ and $\\omega$ double resonance effect. Generally, the $CP$ violation is small in the pure annihilation type decay process. However, we find that the $CP$ violation can be enhanced by double $\\rho-\\omega$ interference when the invariant masses of the $\\pi^+\\pi^-$ pairs are in the vicinity of the $\\omega$ resonance. For the decay process of $\\bar{B}^0_{s}\\rightarrow\\pi^+\\pi^-\\pi^+\\pi^-$, the maximum $CP$ violation can"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.01966","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"}