Abstract.
We study the low-energy universality observed in three-body models through a scale-independent approach. From the already estimated infinite number of three-body excited energy states, which happen in the limit when the energy of the subsystem goes to zero, we are able to identify the lower energies of the helium trimers as possible examples of Thomas-Efimov states. By considering this example, we illustrate the usefulness of a scaling function, which we have defined. The approach is applied to bosonic systems of three identical particles, and also to the case where two kinds of particles are present.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received June 30, 1999; revised July 27, 1999; accepted for publication August 29, 1999
Rights and permissions
About this article
Cite this article
Delfino, A., Frederico, T. & Tomio, L. Low-Energy Universality in Three-Body Models. Few-Body Systems 28, 259–271 (2000). https://doi.org/10.1007/s006010070024
Issue Date:
DOI: https://doi.org/10.1007/s006010070024