%0 Journal Article
%T Flavor anomalies meet flavor symmetry
%A Bigaran, I.
%A Felkl, T.
%A Hagedorn, C.
%A Schmidt, M. A.
%J Physical Review D
%D 2023
%V 108
%N 7
%I Amer Physical Soc
%@ 2470-0010
%G English
%F Bigaran_etal2023
%O WOS:001092627100005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5778), last updated on Wed, 15 Nov 2023 17:01:41 +0000
%X We construct an extension of the Standard Model with a scalar leptoquark Q iota similar to (3,1, – 13) and the discrete flavor symmetry Gf _ D17 x Z17 to explain anomalies observed in charged-current semileptonic B meson decays and in the muon anomalous magnetic moment, together with the charged fermion masses and quark mixing. The symmetry Zdiag 17 , contained in Gf, remains preserved by the leptoquark couplings, at leading order, and efficiently suppresses couplings of the leptoquark to the first generation of quarks and/or electrons, thus avoiding many stringent experimental bounds. The strongest constraints on the parameter space are imposed by the radiative charged lepton flavor violating decays a -mu y and μ-ey. A detailed analytical and numerical study demonstrates the feasibility to simultaneously explain the data on the lepton flavor universality ratios R(D) and R(D*) and the muon anomalous magnetic moment, while passing the experimental bounds from all other considered flavor observables.
%R 10.1103/PhysRevD.108.075014
%U https://arxiv.org/abs/2207.06197
%U https://doi.org/10.1103/PhysRevD.108.075014
%P 075014-77pp