The ariat ional approach i s adopted t o describe massand spin-density fluctuations in poY larized 1 iquid He. The ground s t a t e i s approximated by a suitable Jastrow-Slater wave function which incorporates the ef fec ts of spatial correlations. The newly developed Fermi-hypernetted chain theory i s employed to analyse the associated theoretical par t ic le and spin-dependent structure func...

He is a model of Fermi liquid, isotropic, its Fermi temperature is attainable and the interaction between atoms can be controlled by changing the pressure on the liquid. In this paper we present accurate cw-NMR measurements of the nuclear magnetic susceptibility of liquid He as a function of temperature and pressure. The emphasis has been placed in reliable thermometry, He pressure measurements...

The investigation of the electromagnetic inclusive responses of polarized 3He within the plane wave impulse approximation is briefly reported. A particular emphasys is put on the extraction, from the inclusive responses at the quasielastic peak, of the neutron form factors from feasible experiments. Presented to XVth International Conference on ”Few-body problems in Physics”, Groningen, July 19...

2014 In spin-polarized atomic hydrogen, the way to low T and high density is restricted by the Kapitza resistance. This is calculated, together with the corresponding characteristic time, for one channel : from H gas to liquid helium ripplons. J. Physique LETTRES 44 (1983) L-537 L-540 ler mILLET 1983, : Classification Physics Abstracts 67.40 68.10 51.10 34.50 1. In the past three years a set of...

We investigate the relative contribution of ladder and ring diagrams to the single-particle self-energy in fully-spin-polarized liquid He ( He~). Ladder diagrams are summed to all orders of the bare HeHe interaction using the Galitskii-Feynman-Hartree-Fock (GFHF) analysis. Previous studies of He, using GFHF analysis, have neglected the part of the GFHF self-energy coming from the correlation po...

PVT relations in liquid and solid T2 near the melting curve were measured over 20.5 K-22.1 K and 0 MPa-7 MPa (0 bar-70 bar) with a cell that used diaphragms for pressure and volume variation and measurement. Because of ortho-para self conversion, the melting pressure Pm and the liquid molar volume Vlm increased with time. The rates were consistent with a second order reaction similar to that fo...

A measurement of the nucleon spin asymmetries from deep inelastic scattering of polarized electrons by polarized 3He has been performed. The neutron spin structure function gy is extracted and used to test the Bjorken sum rule. The neutron integral assuming a simple Begge theory extrapolation at low x is Ji gy(x)dx = -0.022f 0.011. Combined with the EMC proton results, the Bjorken sum rule pred...