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Scattering length of the helium atom - helium dimer collision
Elena A. Kolganova, Alexander K. Motovilov, Werner Sandhas
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…
Binding Energies and Scattering Observables in the 4Helium3 Atomic System
A. K. Motovilov, W. Sandhas, S. A. Sofianos +1
The 4He3 system is investigated using a hard-core version of the Faddeev differential equations and realistic 4He-4He interactions. We calculate the binding energies of the 4He tri…
Scattering and resonances in the ^4He three-atomic system
E. A. Kolganova, A. K. Motovilov
A mechanism of disappearance and formation of the Efimov levels of the helium ^4He_3 trimer is studied when the force of interatomic interaction is changed. The resonances includin…
Structure of T- and S-matrices in unphysical sheets and resonances in three-body systems
A. K. Motovilov, E. A. Kolganova
Algorithm, based on explicit representations for the analytic continuation of Faddeev components of the three-body T-matrix in unphysical energy sheets, is employed to study mechan…
On the mechanism of formation of the Efimov states in the helium ^4He trimer
E. A. Kolganova, A. K. Motovilov
A mechanism of disappearance and formation of the Efimov levels of the helium ^4He trimer is studied when the force of the interatomic interaction is changed. It is shown that thes…