Observation ofχ c 2 Production inB Meson Decay
Physical Review Letters(2002)
Abstract
We report the first observation of ${\ensuremath{\chi}}_{c2}$ production in $B$ meson decays. We find an inclusive $B\ensuremath{\rightarrow}{\ensuremath{\chi}}_{c2}X$ branching fraction of $({1.80}_{\ensuremath{-}0.28}^{+0.23}\ifmmode\pm\else\textpm\fi{}0.26)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$. The data set, collected with the Belle detector at the KEKB ${e}^{+}{e}^{\ensuremath{-}}$ collider, consists of $31.9\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ events. We also present branching fractions and momentum spectra for both ${\ensuremath{\chi}}_{c1}$ and ${\ensuremath{\chi}}_{c2}$ production.
MoreTranslated text
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined