Observation of B^{\pm} \to χ_{c1} π^{\pm} and Search for Direct CP Violation

The Belle Collaboration, R. Kumar, J. B. Singh +1

We report the first observation of $B^{\pm }\to {\chi }_{c1}{\pi }^{\pm }$, the Cabibbo- and color-suppressed decay in a data sample of $386\times 10^6$~$B\bar{B}$ events collected at the $Υ(4…