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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…
Ultra-low energy scattering of a He atom off a He dimer
E. A. Kolganova, A. K. Motovilov, S. A. Sofianos
We present a new, mathematically rigorous, method suitable for bound state and scattering processes calculations for various three atomic or molecular systems where the underlying…