{"paper":{"title":"Addendum to \"Impact of polarization observables and $B_c\\to \\tau \\nu$ on new physics explanations of the $b\\to c \\tau \\nu$ anomaly\"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Andreas Crivellin, Ivan Ni\\v{s}and\\v{z}i\\'c, Marta Moscati, Monika Blanke, Teppei Kitahara, Ulrich Nierste","submitted_at":"2019-05-20T18:00:01Z","abstract_excerpt":"In this addendum to arXiv:1811.09603 we update our results including the recent measurement of ${\\cal R}(D)$ and ${\\cal R}(D^*)$ by the Belle collaboration: ${\\cal R}(D)_{\\rm Belle} = 0.307\\pm0.037\\pm0.016$ and ${\\cal R}(D^*)_{\\rm Belle}=0.283\\pm0.018\\pm0.014$, resulting in the new HFLAV fit result ${\\cal R}(D) = {0.340\\pm0.027 \\pm 0.013}$, ${\\cal R}(D^*) = {0.295\\pm0.011 \\pm 0.008 }$, exhibiting a $3.1\\,\\sigma$ tension with the Standard Model. We present the new fit results and update all figures, including the relevant new collider constraints. The updated prediction for ${\\cal R}(\\Lambda_c)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08253","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1905.08253/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"}