{"paper":{"title":"Scalar resonance effects on the B_s - \\bar B_s mixing angle","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"B. El-Bennich, B. Loiseau, J.-P. Dedonder, O. Leitner","submitted_at":"2010-03-31T06:47:57Z","abstract_excerpt":"The $B_s^0 \\to J/\\psi \\phi$ and $B_s^0 \\to J/\\psi f_0(980)$ decays are analyzed within generalized QCD factorization including all leading-order corrections in $\\alphas$. We point out that the ratio of our calculated widths, $\\Gamma (B_s^0\\to J/\\psi f_0(980), f_0(980)\\to \\pi^+\\pi^-)/ \\Gamma(B_s^0 \\to J/\\psi \\phi,\\phi\\to K^+K^-)$, strongly indicates that $S$-wave effects in the $f_0(980)$'s daughter pions or kaons cannot be ignored in the extraction of the $B_s-\\bar{B}_s$ mixing angle, $-2\\beta_s$, from the $B_s^0 \\to \\phi J/\\psi$ decay amplitudes."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.5980","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":""},"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"}