Dynamics of liquid N2 studied by neutron inelastic scattering

Neutron inelastic-scattering data from liquid N2 at wave-vector transfer κ between 0.18 and 2.1 Å-1 and temperatures ranging from T=65-77 K are presented. The data are corrected for the contribution from multiple scattering and incoherent scattering. The resulting dynamic structure factor S (κ,ω) is compared with S (κ,ω) determined by a molecular-dynamics calculation and with that calculated from a linearized Vlasov equation. For κ≤0.3 Å-1 the experimental S (κ,ω) is compared with the values predicted by hydrodynamic theory.