Deep-inelastic neutron scattering determination of the single-particle kinetic energy in solid and liquid He-3

An experimental determination of the single-particle mean kinetic energies for He-3 along the T = 2.00 K isotherm in the dense liquid and in the solid hcp and bce phases is reported, Deep-inelastic neutron scattering measurem ents at exchanged wave vectors ranging from 90.0 to 140.0 Angstrom (-1) hav e been performed in order to evaluate, within the framework of the impulse approximation, the molar volume dependence of the kinetic energy. The resul ts are found in excellent agreement with recent diffusion Monte Carlo simul ations.