Single-particle dynamics in fluid hydrogen and deuterium

Authors
Andreani, C Cipriani, P Colognesi, D Pace, E
Citation
C. Andreani et al., Single-particle dynamics in fluid hydrogen and deuterium, J PHYS-COND, 12(8A), 2000, pp. A139-A145
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
12
Issue
8A
Year of publication
2000
Pages
A139 - A145
Database
ISI
SICI code
0953-8984(20000228)12:8A<A139:SDIFHA>2.0.ZU;2-S
Abstract
Single-particle response functions for liquid D-2 and H-2, obtained from pr evious inelastic neutron scattering measurements, are compared with an exac t quantum calculation for D-2 and a Wentzel-Kramers-Brillouin (WKB) model f or D-2 and H-2. The exact and WKB calculations both provide satisfactory de scriptions of the experimental response function of these fluids over a wid e range of momentum and energy transfers, which spans from the roto-vibrati onal excitations up to the molecular dissociation regime.