S to P wave form factors in semi-leptonic B decays

We apply HQET to semi-leptonic B and B-s meson decays into the observed charmed P wave states. In order to examine the sensitivity of the results to the choice of a specific model, we perform all calculations using several different meson models, and find that uncertainty introduced by the choice of a particular model is about 30%. Specifically, assuming tau(B) = 1.50ps and V-cb = 0.040, we obtain branching ratios of (0.27 +/- 0.08)% and (0.45 +/- 0.14)% for B-->D(1)l (v) over bar(1) and B --> D(2)(*)l (v) over bar(1) respectively.