Volume 291 - 9th International Workshop on the CKM Unitarity Triangle (CKM2016) - WG 2 Parallel
Experimental mini-review on exclusive $V_{ub}$ (Belle II)
M. Lubej* On behalf of the BELLE II collaboration
*corresponding author
Full text: pdf
Pre-published on: June 05, 2017
Published on: June 13, 2017
Abstract
We give a short overview of existing branching fraction measurements of charmless semileptonic $B$ meson decays of the form $B \to X_u \ell \nu$, with $X_u$ being $\pi,~\rho,~\omega,~\eta$ or $\eta'$. We focus on results from Belle and BaBar collaborations. We report prospects for measurements and estimates for $\vert V_{ub} \vert$ determinations in $B \to \pi \ell \nu$ decays at Belle II. With the full expected Belle II dataset, $50~{\rm ab}^{-1}$ of integrated luminosity, the estimated errors on $\vert V_{ub} \vert$, including expected improvements in Lattice QCD calculations in the next decade, are $1.7~\%$ and $1.3~\%$ obtained with the tagged and untagged method of companion $B$ meson reconstruction, respectively.
DOI: https://doi.org/10.22323/1.291.0036
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access