{"paper":{"title":"Revisiting models that enhance $B^+\\to K^+ \\nu\\bar\\nu$ in light of the new Belle II measurement","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"German Valencia, Xiao-Dong Ma, Xiao-Gang He","submitted_at":"2023-09-22T09:42:24Z","abstract_excerpt":"Belle II has recently reported the new measurement ${\\cal B}(B^+\\to K^+\\nu\\bar\\nu)=(2.3\\pm0.7)\\times 10^{-5}$ \\cite{Belle-II:2023esi} which is two times larger than their previous result (although consistent within errors) and about $2.7\\,\\sigma$ higher than the SM prediction. We re-examine new physics scenarios we have discussed previously which can enhance this rate to determine if they can accommodate the higher value reported in the new measurement. We use consistency with existing bounds on $B\\to K^*\\nu\\bar\\nu$, $b\\to s \\ell^+\\ell^-$, $B\\to D^{(*)}\\ell\\bar\\nu$ and $B_s$ mixing to limit po"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.12741","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2309.12741/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}