title: Deep inelastic atomic scattering of x rays in liquid neon.
abstract: An inelastic x-ray scattering (IXS) experiment in liquid neon has been performed in the +/-100 meV exchanged energy range and at exchanged wave numbers, q, comprised between 1 and 16 A(-1). At the highest probed q's a deep inelastic scattering regime is reached where the Ne core electrons, after collision with the x rays, recoil almost freely with an effective mass equal to the Ne atomic mass. IXS in this high q regime is here shown to provide quantitative information on the atomic momentum distribution of liquid Ne, thus supplying a complementary technique to neutron scattering. There are several open problems in quantum and classical liquids which can benefit from this complementarity.
authors.affiliation: European Synchrotron Radiation Facility, Boîte Postale 220 F-38042 Grenoble Cedex 9, France.
authors.forename: G
authors.initials: G
authors.lastname: Monaco
authors.forename: A
authors.initials: A
authors.lastname: Cunsolo
authors.forename: G
authors.initials: G
authors.lastname: Pratesi
authors.forename: F
authors.initials: F
authors.lastname: Sette
authors.forename: R
authors.initials: R
authors.lastname: Verbeni