Amorim, A. E A [UNESP]Frederico, T.Tomio, Lauro [UNESP]2014-05-272014-05-271997-11-01Physical Review C - Nuclear Physics, v. 56, n. 5, 1997.0556-2813http://hdl.handle.net/11449/65216The parametric region in the plane defined by the ratios of the energies of the subsystems and the three-body ground state, in which Efimov states can exist, is determined. We use a renormalizable model that guarantees the general validity of our results in the context of short-range interactions. The experimental data for one-and two-neutron separation energies, implies that among the halo nuclei candidates, only 20C has a possible Efimov state, with an estimated energy less than 14 KeV below the scattering threshold.engArtigo10.1103/PhysRevC.56.R2378WOS:A1997YH00900007Acesso aberto2-s2.0-00388674492-s2.0-0038867449.pdf8621258845956348