the decay $\bar{B} \to D^* \tau^- \bar{\nu}_\tau$,” Phys. Rev. Lett.  [**118**]{}, no. 21, 211801 (2017) doi:10.1103/PhysRevLett.118.211801 \[arXiv:1612.00529 \[hep-ex\]\].

R. Aaij [*et al.*]{} \[LHCb Collaboration\], “Measurement of the ratio of branching fractions $\mathcal{B}(\bar{B}^0 \to D^{*+}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}^0 \to D^{*+}\mu^{-}\bar{\nu}_{\mu})$,” Phys. Rev. Lett.  [**115**]{}, no. 11, 111803 (2015) Addendum: \[Phys. Rev. Lett.  [**115**]{}, no. 15, 159901 (2015)\] doi:10.1103/PhysRevLett.115.159901, 10.1103/PhysRevLett.115.111803 \[arXiv:1506.08614 \[hep-ex\]\]. R. Aaij [*et al.*]{} \[LHCb Collaboration\], “Measurement of the ratio of the $B^0 \to D^{*-} \tau^+ \nu_{\tau}$ and $B^0 \to D^{*-} \mu^+ \nu_{\mu}$ branching fractions using three-prong $\tau$-lepton decays,” arXiv:1708.08856 \[hep-ex\]. J. A. Bailey [*et al.*]{} \[MILC Collaboration\], “B→Dℓν form factors at nonzero recoil and |V$_{cb}$| from 2+1-flavor lattice QCD,” Phys. Rev. D [**92**]{}, no. 3, 034506 (2015) doi:10.1103/PhysRevD.92.034506 \[arXiv:1503.07237 \[hep-lat\]\]. H. Na [*et al.*]{} \[HPQCD Collaboration\], “$B \rightarrow D l \nu$ form factors at nonzero recoil and extraction of $|V_{cb}|$,” Phys. Rev. D [**92**]{}, no. 5, 054510 (2015) Erratum: \[Phys. Rev. D [**93**]{}, no. 11, 119906 (2016)\] doi:10.1103/PhysRevD.93.119906, 10.1103/PhysRevD.92.054510 \[arXiv:1505.03925 \[hep-lat\]\]. S. Aoki [*et al.*]{}, “Review of lattice results concerning low-energy particle physics,” Eur. Phys. J. C [**77**]{}, no. 2, 112 (2017) doi:10.1140/epjc/s10052-016-4509-7 \[arXiv:1607.00299 \[hep-lat\]\]. D. Bigi and P. Gambino, “Revisiting $B\to D \ell \nu$,” Phys. Rev. D [**94**]{}, no. 9, 094008 