On the Determination of $a_1$ and $a_2$ from Hadronic Two Body $B$ Decays

M. Gourdin, A. M Kamal, Y. Y. Keum +1

{}From Class I decays : $B^o \ra π^+ ( ρ^+ ) + D^- ( {D^*}^- )$, we determine $a_1$, and from Class III decays : $B^+ \ra π^+ ( ρ^+ ) + \ol{D}^o ( {\ol{D}^*}^o )$, we determine an…