Measurements of neutron-deuteron (n-d) analyzing power Ay(θ ) at En = 19.0 MeV are reported at 16 angles from θc.m. = 46.7 to 152.0◦. The objective of the experiment is to better characterize the discrepancies betweenn-d data and the predictions of three-nucleon calculations for neutron energies above 16.0 MeV. The experiment used a shielded neutron source, which produced polarized neutrons via...

The random-phase-approximation ~RPA! dynamical response of liquid He at finite temperatures has been calculated using an effective density-dependent atom-atom interaction. The interaction contains a zero-range part of Skyrme type, supplemented by a weighted density approximation to account for short-range correlations, and a long-range effective interaction of Lennard-Jones type. The calculated...

Several azalogies between nuclear systems and liquid 31ie are presented and discussed. The usefulness of the mean field approach in describing several static and dynamic properties of quantum liquids is emphasized. Using a Skyrme force to account for the interaction in liquid 3 ~ e we give predictions for the equation of state in bulk matter, fcr relevant surface properties (surface profile, cl...

We show how a gapless spin liquid with hidden octupolar order arises in an applied magnetic field, in a model applicable to thin films of 3He with competing ferromagnetic and antiferromagnetic (cyclic) exchange interactions. Evidence is also presented for nematic--i.e., quadrupolar--correlations bordering on ferromagnetism in the absence of a magnetic field.

Impurity effective mass in superfluid 4He I.O.Vakarchuk, V.V.Babin Ivan Franko Lviv State University, Department for Theoretical Physics, 12 Drahomanov St., UA-290005 Lviv, Ukraine Received June 9, 1998 The system of bose liquid + impurity is considered. The energy spectrum, as well as effective mass of impurity is calculated. For the case of an 3He atom in superfluid 4He numerical calculations...