Accurate double many-body expansion potential energy surface of HS<sub>2</sub>A<sup>2</sup>A′) by scaling the external correlation

Accurate double many-body expansion potential energy surface of HS₂A²A′) by scaling the external correlation

Zhang Lu-Lu, Song Yu-Zhi^†,, Gao Shou-Bao, Zhang Yuan, Meng Qing-Tian^‡,

The spherically averaged isotropic (V₀) and leading anisotropic potentials (V₂): (a) for H + S₂ interaction, with R_SS = 3.6079a₀; (b) for S + SH interaction, with R_SH = 2.5337a₀.