B Decays Involving $η$ and $η'$ in the Light of the $B \to K η'$ Process

Abstract

The observation by the CLEO Collaboration of the decays $B^{(+,0)} \to K^{(+,0)} η'$ is shown to imply a significant but still uncertain contribution from the flavor-SU(3)-singlet component of the $η'$. By comparing the rate for these decays with others for decays of B mesons to two pseudoscalar mesons, it is shown that the prospects for observing CP-violating asymmetries in certain modes such as $B^+ \to π^+ η$ and $B^+ \to π^+ η'$ are quite bright.