Statistical investigations of the S ( 1 D ) +HD reaction in the quantum regime

Highlights: • Study of the S$\left({}^{1}D\right)$+HD reaction with statistical techniques in the low energy regime. • Cross sections are compared with exact quantum mechanical and experimental values at a more extended temperature range. • Branching ratio between the two possible product channels, SH+D and SD+H, are still subject of discussion. The dynamics of the S$\left({}^{1}D\right)$+HD reaction has been investigated in the low energy regime by means of a statistical quantum method and mean potential phase space theory. Statistical predictions for cross sections down to 10${}^{-4}\mathrm{eV}$ and the corresponding isotope branching ratios have thus been calculated and compared with previous results from the literature. Integral cross sections are also extended up to 0.2 eV to compare with experimental excitation functions reported in the past. Differences between theoretical and experimental branching ratios regarding the two possible product channels, SD+H and SH+D, are observed.