Flavor Anomalies and Quark-Lepton Unification

Abstract

We show that one can explain the neutral and charged anomalies in B-meson decays in the minimal theory for quark-lepton unification.The implications for flavor violating processes are discussed in detail. Strikingly, experimental observations suggest that the unification of quarks and leptons could be realized below the $\mathcal{O}(10^2)$ TeV scale.

26 pages, 5 figures. v2: new references have been added, the bound on the contribution from new physics to Δm_{B_s} has been reduced from 50% to 10%. PRD version

References in corpus (14)

• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• B-physics anomalies: a guide to combined explanations
• Search for lepton-universality violation in $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
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• Baryon Number and Lepton Universality Violation in Leptoquark and Diquark Models
• Measurement of the $\tau$ lepton polarization and $R(D^{\ast })$ in the decay $\bar{B}\to D^{\ast }{\tau }^{-}{\bar{\nu }}_{\tau }$ with one-prong hadronic $\tau$ decays at Belle
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• Massive vectors and loop observables: the $g-2$ case
• Unified SU(4) theory for the $R_{D^{(\ast )}}$ and $R_{K^{(\ast )}}$ anomalies
• Mass limits for scalar and gauge leptoquarks from $K_L^0\to e^{\mp }{\mu }^{\pm },B^0\to e^{\mp }{\tau }^{\pm }$ decays
• Scalar Leptoquarks, Baryon Number Violation and Pati-Salam Symmetry
• Chiral gauge leptoquark mass limits and branching ratios of $K_L^0,B^0,B_s\to l_i^{+}{l}_j^{-}$ decays with account of the general fermion mixing in leptoquark currents