Calculation of dd and He3d nuclear reaction rates with account of anisotropy in distribution of interacting particles

Analytical expressions for binary reaction rates are used for calculating the rates of dd-nuclear reaction (neutron branch) and He3d-nuclear reaction which are also important examples of the reactions of identical and different interacting nuclei. Different initial expressions of effective cross sections were used in the calculations: three for dd-nuclear reaction and two for He3d-nuclear reaction. Resent measurements of effective cross sections of both reactions confirm the old approximation Koslov's formula in the region of low energies (<or approx. 170 keV) of interacting particles, with the accuracy within 10% range