2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86310We 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.Atomic and Molecular ClustersChemical Physicstext