Hadizadeh, M. R. [UNESP]Yamashita, Marcelo Takeshi [UNESP]Tomio, Lauro [UNESP]Delfino, A.Frederico, T.2013-09-302014-05-202013-09-302014-05-202012-02-08Physical Review A. College Pk: Amer Physical Soc, v. 85, n. 2, p. 22, 2012.1050-2947http://hdl.handle.net/11449/24620The momentum-space structure of the Faddeev-Yakubovsky (FY) components of weakly bound tetramers is investigated at the unitary limit using a renormalized zero-range two-body interaction. The results, obtained by considering a given trimer level with binding energy B-3, provide further support to a universal scaling function relating the binding energies of two successive tetramer states. The correlated scaling between the tetramer energies comes from the sensitivity of the four-boson system to a short-range four-body scale. Each excited Nth tetramer energy B-4((N)) moves as the short-range four-body scale changes, while the trimer properties are kept fixed, with the next excited tetramer B-4((N+1)) emerging from the atom-trimer threshold for a universal ratio B-4((N))/B-3 = B-4((N))/B-4((N+1)) similar or equal to 4.6, which does not depend on N. We show that both channels of the FY decomposition [atom-trimer (K type) and dimer-dimer (H type)] present high-momentum tails that reflect the short-range four-body scale. We also found that the H channel is favored over the K channel at low momentum, when the four-body momentum scale largely overcomes the three-body scale.22engArtigo10.1103/PhysRevA.85.023610WOS:000300081800008Acesso abertoWOS000300081800008.pdf37406397265453158621258845956348