Senesi R, Andreani C, Colognesi D, Cunsolo A, Nardone M
Istituto Nazionale per la Fisica della Materia, UdR Roma Tor Vergata, via della Ricerca Scientifica 1, 00133 Roma, Italy.
Phys Rev Lett. 2001 May 14;86(20):4584-7. doi: 10.1103/PhysRevLett.86.4584.
An experimental determination of the single-particle mean kinetic energies for 3He along the T = 2.00 K isotherm in the dense liquid and in the solid hcp and bcc phases is reported. Deep-inelastic neutron scattering measurements at exchanged wave vectors ranging from 90.0 to 140.0 A(-1) have been performed in order to evaluate, within the framework of the impulse approximation, the molar volume dependence of the kinetic energy. The results are found in excellent agreement with recent diffusion Monte Carlo simulations.
报告了沿T = 2.00 K等温线在致密液体以及固体六方密堆积（hcp）和体心立方（bcc）相中3He单粒子平均动能的实验测定。为了在脉冲近似框架内评估动能对摩尔体积的依赖性，已在90.0至140.0 Å⁻¹的交换波矢范围内进行了深度非弹性中子散射测量。结果与最近的扩散蒙特卡罗模拟结果非常吻合。
