The ^4He trimer as an Efimov system
We review the results obtained in the last four decades which demonstrate the Efimov nature of the $^4$He three-atomic system.
physics.atm-clus↗
arXiv subjects
Werner Sandhas
Publications and source records attributed to Werner Sandhas.
New nuclear three-body clusters ϕ{NN}
Binding energies of three-body systems of the type ϕ+2N are estimated. Due to the strong attraction between ϕ-meson and nucleon, suggested in different approaches, bound states can appear in systems like ϕ+np (singlet and triplet) and ϕ+pp. This indicates the principal possibility of the formation of new nuclear clusters.
nucl-th↗
Ultracold scattering processes in three-atomic helium systems
We review results on scattering observables for $^4$He--$^4$He$_2$ and $^3$He--$^4$He$_2$ collisions. We also study the effect of varying the coupling constant of the atom-atom interaction on the scattering length.
physics.atm-clus↗
Scattering length for helium atom-diatom collision
We present results on the scattering lengths of ^4He--^4He_2 and ^3He--^4He_2 collisions. We also study the consequence of varying the coupling constant of the atom-atom interaction.
physics.atm-clus↗
Scattering length of the helium atom - helium dimer collision
We present our recent results on the scattering length of ^4He-^4He_2 collisions. These investigations are based on the hard-core version of the Faddeev differential equations. As compared to our previous calculations of the same quantity, a much more refined grid is employed, providing an improvement of about 10%. Our results are compared with other ab initio, and with model calculations.
physics.atm-clus↗