Study of color suppressed modesB0→D(*)0η(′)

Factorization in Color - Suppressed B Meson Decays ∗

We summerize the status of factorization hypothesis in the color-suppressed B meson decays : B → J/ψK (*). We present the general formalism for decay rates and polarization fractions with considering all possible non-factorizable contributions which also include the color-octet contributions, and a new factorization scheme comes appear when the universality is exist : χ F 1 = χ A1 = χ A2 = χ V ...

Comments on Color-Suppressed Hadronic B Decays

Recent experimental results on the color-suppressed nonleptonic decays B̄0 → D(∗)0π0 provide evidence for a failure of the naive factorization model and for sizeable relative strong-interaction phases between class-1 and class-2 B̄ → D(∗)π decay amplitudes. The allowed regions for the corresponding ratios of (complex) isospin amplitudes and a2/a1 parameters are determined. The results are interpr...

Color Suppressed Contributions to the Decay Modes

The amplitudes for decays of the type Bd,s → Ds,dDs,d, have no factorizable contributions, while Bd,s → Ds,dD s,d, and Bd,s → D∗ s,dD s,d have relatively small factorizable contributions through the annihilation mechanism. The dominant contributions to the decay amplitudes arise from chiral loop contributions and tree level amplitudes which can be obtained in terms of soft gluon emissions formi...

Measurement of the Branching Fractions of the Color - Suppressed

Tests of factorization in color suppressed nonleptonic B decay modes

We propose a number of tests of factorization for the color-suppressed nonleptonic decay channels: B → K(∗) ηc and B → K(∗) η c. The relevant leptonic constants and form factors are calculated within the QCD sum rules approach. John Simon Guggenheim Fellow 1994-1995 Also supported by MURST, Ministero dell’Universitá e Ricerca Scientifica e Tecnologica, Italy