Anomalies in B-decays and U(2) flavour symmetry

2015/12/04 by Riccardo Barbieri, Gino Isidori, Andrea Pattori +1 · 22 citations
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-016-3905-3

16 pages, 4 figures

arxiv created 2015/12/04 · openalex publication_date 2016/02/01 · arxiv updated 2016/03/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

Abstract

The collection of a few anomalies in semileptonic B-decays invites to speculate about the emergence of some strikingly new phenomena. Here we offer a possible interpretation of these anomalies in the context of a weakly broken U(2)⁵ flavour symmetry and lepto-quark mediators.

Citations

• Lepton universality violation and lepton flavor conservation in B-meson decays
• Big-Bang Nucleosynthesis

Cited by

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• B-decay anomalies in Pati–Salam SU(4)
• Complete framework for tau polarimetry in B→D(*)τν decays
• Flavour issues in warped custodial models: B anomalies and rare K decays
• Continuing search for new physics in b → sμμ decays: two operators at a time
• Y and ψ leptonic decays as probes of solutions to the R(D (*)) puzzle
• A model of muon anomalies
• Strong CP problem with low-energy emergent QCD: The 4321 case
• Implications for new physics in b→ s μ μ transitions after recent measurements by Belle and LHCb
• Accidental scale-invariant Majorana dark matter in leptoquark-Higgs portals
• Leptoquark mechanism of neutrino masses within the grand unification framework
• Reconciling B-meson decay anomalies with neutrino masses, dark matter and constraints from flavour violation
• B-meson charged current anomalies: The post-Moriond 2019 status
• Predictions for B_s → K^* ℓ ℓ in non-universal Z' models
• Resolving the (g−2)μ and B anomalies with leptoquarks and a dark Higgs boson
• Gauge-invariant implications of the LHCb measurements on lepton-flavor nonuniversality
• Model of vector leptoquarks in view of the B-physics anomalies
• A global likelihood for precision constraints and flavour anomalies

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• Lepton non-universality in B-decays in the minimal leptoquark gauge model
• B-anomalies related to leptons and lepton flavour violation: new directions in model building
• Explaining Flavour Anomalies with Heavy Scalars
• Flavor Violations in B-Mesons within Non-Minimal SU(5)
• Beyond the Standard Model with Lepton Flavor Universality Violation