Density dependence of the momentum distribution in normal liquid sup 4 He

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.103· OSTI ID:6895340

Herwig, K W; Sokol, P E ^[1]; Sosnick, T R; Snow, W M; Blasdell, R C ^[2]

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1. Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802 (USA)
2. Materials Science Division and Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, Illinois 60439 (USA)

Deep inelastic neutron scattering measurements on normal liquid {sup 4}He at 4.25 K have been carried out at 11 densities between 0.125 (saturated vapor pressure) and 0.200 g/cm{sup 3}, at a momentum transfer of 23 A{sup {minus}1}. A sum of two Gaussians is required to characterize the scattering at all densities, even when the broadening due to instrumental resolution and corrections to the impulse approximation are included. The kinetic energy varies from 15.5 K at 0.125 g/cm{sup 3} to 32.7 K at 0.200 g/cm{sup 3}.

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6895340
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:1; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COHERENT SCATTERING
DEEP INELASTIC SCATTERING
DENSITY
DIFFRACTION
ENERGY
EVEN-EVEN NUCLEI
FLUIDS
HELIUM 4
HELIUM ISOTOPES
INELASTIC SCATTERING
INTERACTIONS
ISOTOPES
KINETIC ENERGY
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LIGHT NUCLEI
LIQUIDS
MOMENTUM TRANSFER
NEUTRON DIFFRACTION
NUCLEI
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
SCATTERING
STABLE ISOTOPES