Revisiting the new-physics interpretation of the $b\to c\tau\nu$ data

  title={Revisiting the new-physics interpretation of the \$b\to c\tau\nu\$ data},
  author={Rui-Xiang Shi and L. Geng and B. Grinstein and S. Jager and J. M. Camalich},
  journal={arXiv: High Energy Physics - Phenomenology},
  • Rui-Xiang Shi, L. Geng, +2 authors J. M. Camalich
  • Published 2019
  • Physics
  • arXiv: High Energy Physics - Phenomenology
  • We revisit the status of the new-physics interpretations of the anomalies in semileptonic $B$ decays in light of the new data reported by Belle on the lepton-universality ratios $R_{D^{(*)}}$ using the semileptonic tag and on the longitudinal polarization of the $D^*$ in $B\to D^*\tau\nu$, $F_L^{D^*}$. The preferred solutions involve new left-handed currents or tensor contributions. Interpretations with pure right-handed currents are disfavored by the LHC data, while pure scalar models are… CONTINUE READING

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