Test of the semischematic model for a liquid of linear molecules

We apply to a liquid of linear molecules the semischematic mode-coupling mo del, previously introduced to describe the center of mass (COM) slow dynami cs of a network-forming molecular liquid. We compare the theoretical predic tions and numerical results from a molecular-dynamics simulation, both for the time and the wave-vector dependence of the COM density-density correlat ion function. We discuss the relationship between the presented analysis an d the results from an approximate solution of the equations from molecular mode-coupling theory [R. Schilling and T. Scheidsteger, Phys. Rev. E 56, 29 32 (1997)]. [S1063-651X(98)08311-1].