Search for color-suppressed B hadronic decay processes at the Upsilon(4S) resonance
- Using 3.1 fb-1 of data accumulated at the Y (4S) by the CLEO-II detector, corresponding to 3.3×106 BB̄ pairs, we have searched for the color-suppressed B hadronic decay processes B̄0→D0(D*0)X0, where X0 is a light neutral meson π0, ρ0, η, η′ or ω. The D*0 mesons are reconstructed in D*0→D0π0 and the D0 mesons in D0→K- π+,K- π+ π0 and K- π+ π+ π- decay modes. No obvious signal is observed. We set 90% C.L. upper limits on these modes, varying from 1.2×10-4 for B̄0→D0π0 to 1.9×10-3 for B̄0→D*0η′.
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