{"paper":{"title":"Exploring $B_s \\to D_s^{(*)\\pm} K^\\mp$ Decays in the Presence of a Sizable Width Difference $\\Delta\\Gamma_s$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Kristof De Bruyn, Manuel Schiller, Marcel Merk, Niels Tuning, Robert Fleischer, Robert Knegjens","submitted_at":"2012-08-31T11:27:17Z","abstract_excerpt":"The $B_s \\to D_s^{(*)\\pm} K^\\mp$ decays allow a theoretically clean determination of $\\phi_s+\\gamma$, where $\\phi_s$ is the $B^0_s$-$\\bar B^0_s$ mixing phase and $\\gamma$ the usual angle of the unitarity triangle. A sizable $B_s$ decay width difference $\\Delta\\Gamma_s$ was recently established, which leads to subtleties in analyses of the $B_s \\to D_s^{(*)\\pm} K^\\mp$ branching ratios but also offers new \"untagged\" observables, which do not require a distinction between initially present $B^0_s$ or $\\bar B^0_s$ mesons. We clarify these effects and address recent measurements of the ratio of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.6463","kind":"arxiv","version":2},"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"}