Accès ouvert
2003
article
OpenAlex
F. Fang, T. Hojo, K. Abe, K. Abe et autres
We report measurements of branching fractions for charged and neutral $B\ensuremath{\rightarrow}{\ensuremath{\eta}}_{c}K$ decays where the ${\ensuremath{\eta}}_{c}$ meson is reconstructed in the ${K}_{S}^{0}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}$, ${K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$, ${K}^{*0}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, and $p\overline{p}$ decay channels. The neutral ${B}^{0}$ channel is a $CP$ eigenstate and can be used to measure the …
us, jp, ru, au, pl, ch, in, si, tw, kr, de, at, cn
(code pays fourni par la source)
Accès ouvert
2002
article
OpenAlex
R.-S. Lu, K. Abe, Riichiro Abe, I. Adachi et autres
We report the first observation of the charmless two-body mode ${B}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}\ensuremath{\omega}{K}^{\ifmmode\pm\else\textpm\fi{}}$ decay, and a new measurement of the branching fraction for the ${B}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}\ensuremath{\omega}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ decay. The measured branching fractions are $\mathcal{B}({B}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}\ensuremath{\omega}{K}^{\ifmmode\pm\else\textpm\fi{}})=({9.2}_{\ensuremath{-}2.3}^{+2.6}\ifmmode\pm\else\textpm\fi{}1.0)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}6}$ and $\mathcal{B}({B}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}\ensuremath{\omega}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}})=({4.2}_{\ensuremath{-}1.8}^{+2.0}\ifmmode\pm\else\textpm\fi{}0.5)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}6}$. We also measure the partial rate asymmetry of ${B}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}\ensuremath{\omega}{K}^{\ifmmode\pm\else\textpm\fi{}}$ decays …
tw, jp, ru, au, cn, pl, in, si, us, kr, ch, at
(code pays fourni par la source)
Accès ouvert
2002
article
OpenAlex
K. Abe, K Abe, R. Abe, T. Abe et autres
We report the observation of the decay mode B(+/-) --> p(-)pK(+/-)based on an analysis of 29.4 fb(-1) of data collected by the Belle detector at KEKB. This is the first example of a b-->s transition with baryons in the final state. The …
jp
(code pays fourni par la source)
Accès ouvert
2001
article
OpenAlex
K. Abe, K. Abe, Riichiro Abe, I. Adachi et autres
We report measurements for two-body charmless hadronic B decays with an η ′ meson in the final state. Using 11.1×10 6 B B ̄ pairs collected with the Belle detector, we find BF ( B + → η ′ K + )=(79 …
jp, kr, ru, au, pl, in, us, tw, cn, de, at
(code pays fourni par la source)