Fontoura, C. E. [UNESP]Krein, Gastão Inácio [UNESP]Vizcarra, V. E. [UNESP]2013-09-302014-05-202013-09-302014-05-202009-01-0119th International Iupap Conference on Few-body Problems In Physics. Cedex A: E D P Sciences, v. 3, p. 8, 2009.2100-014Xhttp://hdl.handle.net/11449/24551We study the (D) over barN interaction at low energies with a quark model inspired in the QCD Hamiltonian in Coulomb gauge. The model Hamiltonian incorporates a confining Coulomb potential extracted from a self-consistent quasiparticle method for the gluon degrees of freedom, and transverse-gluon hyperfine interaction consistent with a finite gluon propagator in the infrared. Initially a constituent-quark mass function is obtained by solving a gap equation and baryon and meson bound-states are obtained in Fock space using a variational calculation. Next, having obtained the constituent-quark masses and the hadron waves functions, an effective meson-nucleon interaction is derived from a quark-interchange mechanism. This leads to a short range meson-baryon interaction and to describe long-distance physics vector- and scalar-meson exchanges described by effective Lagrangians are incorporated. The derived effective (D) over barN potential is used in a Lippmann-Schwinger equation to obtain phase shifts. The results are compared with a recent similar calculation using the nonrelativistic quark model.8engTrabalho apresentado em evento10.1051/epjconf/20100303027WOS:000290401000052Acesso abertoWOS000290401000052.pdf5704289678296630