Noble gas broadening calculation for fundamental bands of H_{2}S

The results of calculations of He-, Ne-, Ar-, Kr-, and Xe- broadening coefficients of ν$ _{1}$, ν $_{2}$ and ν$ _{3}$ ro-vibrational lines of H$_{2}$S molecule are presented and discussed. The calculations were performed in the framework of the Robert-Bonamy method, in which the exact trajectory model was incorporated. Parameters of the interaction potentials, chosen in the form of atom-atom potentials, were optimized to give the best agreement with the existing experimental data. With the exception of the some data the agreement between the calculated and experimentally measured broadening coefficients γ is satisfactory for the ν$ _{1}$ and ν$ _{3}$ bands of H$_{2}$S for all collisional partners. The measured strong J-dependence of helium broadening in the ν$ _{2}$ band did not appear in the calculation. Besides, it was found that an interaction potential for H$_{2}$S- He system is ambiguously determined. The optimal set of the parameters for H$_{2}$S- He interaction potential was used in the calculation of the helium broadening coefficients for the ν$ _{1}$ band of H$_{2}$S (J l 15, 100 K l T l 1000K) and then for their analytical representation.