Reading the footprints of the B-meson flavor anomalies

  title={Reading the footprints of the B-meson flavor anomalies},
  author={Claudia Cornella and Darius A. Faroughy and Javier Fuentes-Mart{\'i}n and Gino Isidori and Matthias Neubert},
  journal={Journal of High Energy Physics},
Abstract Motivated by the recent LHCb announcement of a 3.1σ violation of lepton- flavor universality in the ratio RK = Γ(B → Kμ+μ−)/Γ(B → Ke+e−), we present an updated, comprehensive analysis of the flavor anomalies seen in both neutral-current (b → sℓ+ℓ−) and charged-current (b → $$ c\tau \overline{\nu} $$ cτ ν ¯ ) decays of B mesons. Our study starts from a model-independent effective field-theory approach and then considers both a simplified model and a UV-complete extension of the… 

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