Calculations of long-range three-body interactions for He( n0λS )-He( n0λS )-He( n0′λL )

Calculations of the binding energies of weakly bound He–He–H, He–He–H− and He–H–H molecules

We searched for the existence of weakly bound He–He–H, He–He–H− and He–H– H molecules where the binding energies are expected to be of the order of degrees Kelvin. By employing the best empirical interaction between each pair of particles, we solved the Schrödinger equation for the triatomic systems using hyperspherical coordinates in the adiabatic approximation. We found no bound states for 4H...

Purely - long - range bound states of He „ 2 s 3 S ... ¿ He „

We predict the presence and positions of purely-long-range bound states of He(2s S)1He(2p P) near the 2s S112p P0,1 atomic limits. The results of the full multichannel and approximate models are compared, and we assess the sensitivity of the bound states to atomic parameters characterizing the potentials. Photoassociation to these purely-long-range molecular bound states may improve the knowled...

Few - body calculations of proton - 6 , 8 He scattering

We present a theoretical analysis of recently published experimental data for the elastic scattering of protons from the helium isotopes He and He at energies near 700 MeV per nucleon. The analysis treats the few-body degrees of freedom of these light neutron-rich nuclei explicitly and is developed in terms of threeand five-body wave functions for He and He, respectively. Comparisons of calcula...

Autoionization of He and Autodetachment of He- following Bombardment by H+, H2+, He+, and He Atoms

Thermodynamics of Liquid 'he- " He Mixtures

The osmotic pressure of 3He-4He solutions is shown to follow in a natural way from the separation of the specific heat in a quasiparticle contribution and a 4He-contribution. Expressions for important thermodynamic properties such as the chemical potentials, the internal energy, the entropy, specific heat, osmotic pressure, etc. are given for the case the quasiparticle gas can be treated as a n...