Vol. 25, issue 04, article # 2

Abstract:

The results of calculations of He-broadening coefficients of the rotational lines of H₂S molecule at low temperatures are presented and discussed. The parabolic and exact trajectory models are used in the calculations. It is shown that the He-broadening coefficients of H₂S lines measured at up to 10ºK may be described in the framework of semi-classical methods. The optimal inter-molecular potential, which gives the best description of the temperature dependence of He-broadening coefficients of two rotational lines 1₁₀←1₀₁ and 2₂₀←2₁₁, is found in the calculations.

Keywords:

He-broadening, temperature dependence, H₂S