Experimental bandshapes of the ν 3 band of CH 3 F in helium: the role of interbranch and intrabranch line mixing

Linewidths of ammonia in collisions with He: Calculations from an ab initio potential

“…By expanding the ab initio potential in the orthogonal basis functions of the spherical harmonics (Eq. (2)) and considering only collisioninduced transitions with DK = 0 [29], the analytical expressions for S outer 2;i and S middle 2;fi may be derived from those previously obtained in Ref. [25] as: S outer …”

Line-mixing between rotational Stark components of CH3F self-perturbed and perturbed by helium: Experimental results and IOS analysis

“…[17]. The observed modifications with respect to the addition of Lorentzian contributions were analyzed in terms of models respectively based on the IOS and ECS approximations.…”

“…For CH 3 F-He, the validity of Eq. (8) approximation has been assumed and discussed in [17] where the basic Q 0 (L) cross-sections, that will be used here, were deduced from an IOS analysis of Hebroadening data .…”

Pressure-induced line mixing in the ν4 band of NH3 perturbed by O2 and self-perturbed

“…Thereafter, line-mixing effects have been analyzed for CH 3 F perturbed by rare gas using a dynamical model [8]. Recently, a simple model of the m 5 R Q branch of CH 3 Cl perturbed by N 2 was proposed by Hartmann et al [9].…”