Collision-induced light scattering in gaseous helium

We have measured the collision-induced light-scattering spectrum of gaseous helium at T=298 K for densities between 46 and 366 amagats to obtain the two-body spectrum in the frequency range 10 to 250 cm-1. The comparison between the dipole-induced-dipole theoretical values of the two-body spectral moments and the experimental values show large discrepancies. © 1978 The American Physical Society.