High-momentum response of liquid 3He.
A final-state-effects formalism suitable to analyze the high-momentum response of Fermi liquids is presented and used to study the dynamic structure function of liquid 3He. The theory, developed as a natural extension of the Gersch-Rodriguez formalism, incorporates the Fermi statistics explicitly through a new additive term which depends on the semidiagonal two-body density matrix. The use of a realistic momentum distribution, calculated using the diffusion Monte Carlo method, and the inclusion of this additive correction allows for good agreement with available deep-inelastic neutron scattering data.
Departament d'Electrònica, Enginyeria i Arquitectura La Salle, Passeig Bonanova 8, Universitat Ramon Llull, E-08022 Barcelona, Spain.
F
F
Mazzanti
A
A
Polls
J
J
Boronat
J
J
Casulleras