Measurement of the B0→π−ℓ+ν and B+→η(′)ℓ+ν branching fractions, the B0→π−ℓ+ν and B+→ηℓ+ν form-factor shapes, and determination of |Vub|
P. del Amo Sanchez, J. P. Lees, V. Poireau, E. Prencipe et autres
We report the results of a study of the exclusive charmless semileptonic decays, ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\eta}}^{(\ensuremath{'})}{\ensuremath{\ell}}^{+}\ensuremath{\nu}$ and ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\ell}}^{+}\ensuremath{\nu}$, undertaken with approximately $464\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected at the $\ensuremath{\Upsilon}(4S)$ resonance with the BABAR detector. The analysis uses events in which the signal $B$ decays are …
fr, es, it, no, us, de, ca, gb, ru, cz (code pays fourni par la source)