{"paper":{"title":"Constraints on the charged scalar effects using the forward-backward asymmetry on $B\\to D^{(*)}\\tau\\bar{\\nu_{\\tau}}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Hidekazu Tanaka, Yasuhito Sakaki","submitted_at":"2012-05-22T13:18:57Z","abstract_excerpt":"The decay modes $\\bar{B}\\to D^{(*)}\\tau\\bar{\\nu}_{\\tau}$ are sensitive to charged scalar effects, such as the charged Higgs effects. In this paper we suggest a method to determine their effects by using the ratio of branching fractions and forward-backward asymmetries. In particular, forward-backward asymmetries on $\\bar{B}\\to D^{(*)}\\tau(\\to \\pi\\nu_{\\tau})\\bar{\\nu}_{\\tau}$, $\\bar{B}\\to D^{(*)}\\tau(\\to \\rho\\nu_{\\tau})\\bar{\\nu}_{\\tau}$, and $\\bar{B}\\to D^{(*)}\\tau(\\to a_1\\nu_{\\tau})\\bar{\\nu}_{\\tau}$ play an important role, which discriminate the Standard Model from other New Physics scenarios."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.4908","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"}