Scattering length of the helium-atom–helium-dimer collision

Abstract

We present our recent results on the scattering length of 4 He-4 He 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.PACS numbers (2001)

Ultracold scattering processes in three-atomic helium systems

“…Notice that in Ref. [14] our previous calculations of [11] have been improved essentially by enlarging the grid parameters and the cut-off hyperradius. This table also contains the results by Blume and Greene [7], by Roudnev [13], and the most recent ones by Lazauskas and Carbonell [15].…”

The 4He Trimer as an Efimov System

“…In this respect we refer to [19,22,24,30,32,33,34,36,37]. For a discussion of problems of convergence arising in 4 He - 4 He 2 scattering calculations see [38,Section 5].…”

Continuum resonances with shielded Coulomb-like potential and Efimov effect

“…The detailed pattern of the full trajectory of Efimov states is well known and has been studied in several papers [3,[22][23][24]. The upper part of Fig.…”