Shalchi, M. A. [UNESP]Hadizadeh, M. R.Yamashita, M. T. [UNESP]Tomio, Lauro [UNESP]Frederico, T.2018-12-112018-12-112016-03-25EPJ Web of Conferences, v. 113.2100-014X2101-6275http://hdl.handle.net/11449/172884The behaviour of an Efimov excited state is studied within a three-body Faddeev formalism for a general neutron-neutron-core system, where neutron-core is bound and neutron-neutron is unbound, by considering zero-ranged as well as finite-ranged two-body interactions. For the finite-ranged interactions we have considered a one-term separable Yamaguchi potential. The main objective is to study range corrections in a scaling approach, with focus in the exotic carbon halo nucleus 20C.engTrabalho apresentado em evento10.1051/epjconf/201611306017Acesso aberto2-s2.0-849646180748621258845956348