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$B$ decays involving $\eta$ and $\eta '$ in the light of the $B \to K \eta '$ process
The observation by the CLEO Collaboration of the decay $B^+ \to K^+ \eta'$ with a branching ratio of about $7 \times 10^{-5}$ is shown to imply a significant but still uncertain contribution from the flavor-SU(3)-singlet component of the $\eta'$. By comparing this rate with others for deca...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1997
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.79.4333 http://cds.cern.ch/record/331149 |