## Averages of experimental results on branching ratios (and other properties) of b hadron decays to charm hadrons

The symbol $$\mathcal{B}$$ is used for branching ratios, $$f$$ for production fractions, and $$\sigma$$ for cross sections. The decay amplitudes for longitudinal, parallel, and perpendicular transverse polarization in pseudoscalar to vector-vector decays are denoted $${\cal{A}}_0$$, $${\cal{A}}_\parallel$$, and $${\cal{A}}_\perp$$, respectively, and the definitions $$\delta_\parallel = \arg({\cal{A}}_\parallel/{\cal{A}}_0)$$ and $$\delta_\perp = \arg({\cal{A}}_\perp/{\cal{A}}_0)$$ are used for their relative phases. The inclusion of charge conjugate modes is always implied.

The old BtoCharm web site can be found here.