Quasiclassical approximation to final-state effects in the scattering of neutrons from a hard-core fluid

Journal Article · Tue Oct 01 04:00:00 EDT 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.32.4492· OSTI ID:5212148

Reiter, G; Becher, T

A quasiclassical approximation is used to calculate S(q,..omega..) in the large-q limit for a one-dimensional gas of hard rods and for a three-dimensional hard-sphere gas. We find in both cases that S(q,..omega..) does not approach the impulse approximation as q..-->..infinity. In this limit, the form of the spectral function agrees with that suggested by Hohenberg and Platzman, but the half-width of the resolution function due to final-state interactions is (hq/2m)rhosigma rather than (hq/m)rhosigma.

• Research Organization: Department of Physics, University of HoustonUniversity Park, Houston, Texas 77004
• OSTI ID: 5212148
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 32:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

654003* -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELASTIC SCATTERING
FINAL-STATE INTERACTIONS
FLUIDS
HARD-SPHERE MODEL
IMPULSE APPROXIMATION
INTERACTIONS
LINEAR MOMENTUM TRANSFER
MOMENTUM TRANSFER
NEUTRAL-PARTICLE TRANSPORT
NEUTRON TRANSPORT
RADIATION TRANSPORT
SCATTERING
WIGNER SCATTERING