{"paper":{"title":"Phenomenology of an $SU(2) \\times SU(2) \\times U(1)$ model with lepton-flavour non-universality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alejandro Celis, Avelino Vicente, Javier Fuentes-Martin, Javier Virto, Sofiane M. Boucenna","submitted_at":"2016-08-03T20:39:01Z","abstract_excerpt":"We investigate a gauge extension of the Standard Model in light of the observed hints of lepton universality violation in $b \\to c \\ell \\nu$ and $b \\to s \\ell^+ \\ell^-$ decays at BaBar, Belle and LHCb. The model consists of an extended gauge group $\\mathrm{SU(2)}_{1} \\times \\mathrm{SU(2)}_{2} \\times \\mathrm{U(1)}_Y$ which breaks spontaneously around the TeV scale to the electroweak gauge group. Fermion mixing effects with vector-like fermions give rise to potentially large new physics contributions in flavour transitions mediated by $W^{\\prime}$ and $Z^{\\prime}$ bosons. This model can ease ten"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01349","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"}