Structure of exotic three-body systems

Abstract

The classification of large halos formed by two identical particles and a core is systematically addressed according to interparticle distances. The root-mean-square distances between the constituents are described by universal scaling functions obtained from a renormalized zero-range model. Applications for halo nuclei, ${}^{11}$Li and ${}^{14}$Be, and for atomic ${}^4$He${}_3$ are briefly discussed. The generalization to four-body systems is proposed.

Comments: Contribution to the International workshop "Critical Stability of Few-Body Quantum Systems". To be published in "Few-Body Systems"