Abstract: In this work the internal energy angular distributions of the products produced in the atom-diatomic molecule reactive collisions have been calculated using quasiclassical theory. And the vibrational branching ratios were derived from this calculation.
The reactions F+H_2(D_2)→HF(DF)+H(D)were studied with Monte Carlo calaulation of quasiclasscal trajectory method. A potential energy surface of LEPS form was used. A comparison of the results with the experimental data from molecular beam studies shows a fairly good agreement.