{"paper":{"title":"Model independent analysis of semileptonic $B$ decays to $D^{**}$ for arbitrary new physics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Dean J. Robinson, Florian U. Bernlochner, Zoltan Ligeti","submitted_at":"2017-11-08T19:00:05Z","abstract_excerpt":"We explore semileptonic $B$ decays to the four lightest excited charm mesons, $D^{**} = \\{D_0^*,\\, D_1^*,$ $D_1,\\, D_2^*\\}$, for nonzero charged lepton mass and for all $b\\to c \\ell\\bar\\nu$ four-Fermi interactions, including calculation of the ${\\cal O}(\\Lambda_\\text{QCD}/m_{c,b})$ and ${\\cal O}(\\alpha_s)$ corrections to the heavy quark limit for all form factors. In the heavy quark limit some form factors are suppressed at zero recoil, therefore, the ${\\cal O}(\\Lambda_\\text{QCD}/m_{c,b})$ corrections can be very important. The $D^{**}$ rates exhibit sensitivities to new physics in $b\\to c\\tau"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.03110","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"}