{"paper":{"title":"Testing the Non-universal Z^\\prime Model in Bs -> \\phi \\pi^0 Decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"C.s Kim, Juan Hua, Ying Li","submitted_at":"2010-02-12T12:01:28Z","abstract_excerpt":"The branching ratio and direct CP asymmetry of the decay mode $B_s \\to \\phi \\pi^0$ have been calculated within the QCD factorization approach in both the standard model (SM) and the non-universal $Z^\\prime$ model. In the standard model, the CP averaged branching ratio is about $1.3\\times 10^{-7}$. Considering the effect of $Z^\\prime$ boson, we found the branching ratio can be enlarged three times or decreased to one third %by the effect of $Z^\\prime$ boson within the allowed parameter spaces. Furthermore, the direct CP asymmetry could reach 55% with a light $Z^\\prime$ boson and suitable CKM ph"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.2532","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"}