Testing factorization in colour-suppressed beauty decays with the B -> η_c + K(K^*) modes

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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Latex 17pages(excluded 2 figures),Preprint PAR/LPTHE/94-32

Scientific paper

10.1103/PhysRevD.51.3510

The large discrepancy recently observed between $B \ra J/\Psi + K (K^*)$ data and commonly used hadronic form factor models might be due to a breakdown of the factorization assumption. By showing that the $B \ra \eta_c + K (K^*)$ rates can be calculated without relying on any form factor model, we propose a test of the factorization hypothesis. This test is free of possible uncertainties caused by final state interactions and $W$-exchange graph contributions. If factorization holds, the measurable ratio $\Gamma(B \ra \eta_c + K^*)/\Gamma(B \ra \eta_c + K )$ is predicted to be in the range from 0.18 to 0.95 when the CLEO II data on $B \ra J/\Psi + K (K^*)$ are used.

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