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We revisit the experimental and theoretical status of $B \to \rho l\bar{\nu}$ and $B \to \omega l \bar{\nu}$ decays. We perform a combined fit ofaveraged spectra from Belle and Babar measurements with prior light cone sumrule calculations, in order to obtain more precise predictions over the full$q^2$ range. The extracted values of $|V_{ub}|$ from these combined fitsexhibit smaller uncertainty compared to previous extractions from $B \to \rho l\bar{\nu}$ and $B \to \omega l \bar{\nu}$ decays and the central values arefound to be smaller than values extracted from $B \to \pi l \nu$ or inclusivemeasurements. We use our fit results to obtain more precise predictions in andbeyond the Standard Model for the lepton universality ratios $R(\rho)$ and$R(\omega)$, as well as several angular observables that are sensitive to thefull $q^2$ distribution, such as the longitudinal polarization of the vectormeson, the $\tau$ polarization, and its forward-backward asymmetry.

$B \to \rho l \bar \nu$ and $\omega l \bar \nu$ in and beyond the Standard Model: Improved predictions and $|V_{ub}|$