Hermite correction method in hyperspherical coordinates: Application to chemical reactions

The rotational product state distribution for the D+H2(v=1, j=1) → HD(v′=1, j′)+H reaction, has been calculated using the Hermite correction method in hyperspherical coordinates. We have also considered the geometric phase effect in our calculations either by introducing a vector potential in the system Hamiltonian or by multiplying the wavefunction by a phase factor. In the present application, we have investigated the performance of the simplest approach where only one time-dependent Gauss–Hermite basis function in the hyperradius is included.