{"paper":{"title":"Penguin $b \\to s\\ell'^+ \\ell'^-$ and $B$-meson anomalies in a gauged ${L_\\mu -L_\\tau}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Chuan-Hung Chen, Takaaki Nomura","submitted_at":"2017-07-11T12:51:34Z","abstract_excerpt":"The $Z'$-gauge boson in an $U(1)_{L_\\mu-L_\\tau}$ gauge symmetry has two interesting features: one is its vector couplings to the charged leptons, and the other is the decoupling from the electron. Based on these properties, we investigate the feasibility to simultaneously resolve the $R_{K^{(*)}} = BR(B\\to K^{(*)} \\mu^+ \\mu^-)/BR(B\\to K^{(*)} e^+ e^-)$ and $R_{D^{(*)}} = BR(\\bar B\\to D^{(*)} \\tau \\bar\\nu_\\tau)/BR(\\bar B\\to D^{(*)} \\ell \\bar\\nu_\\ell)$ anomalies in an $U(1)_{L_\\mu-L_\\tau}$ model, where the former is expected to arise from the $Z'$-penguin-induced $b\\to s \\mu^+ \\mu^-$ process and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03249","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"}