POSITIVE PARITY NONSTRANGE BARYONS BEYOND 2 GEV

Previous studies of nonstrange baryons are extended to resonances of m ass beyond 2 GeV, belonging to the N = 4 band. The framework is a semi -relativistic constituent quark model. The quark-quark interaction con tains a Coulomb plus linear confinement term and a short-range spin-sp in term. It turns out that the string tension value of 1 GeV fm(-1) fi xed previously in the N less than or equal to 3 bands is compatible wi th the N = 4 band. It is shown that the three-body confinement potenti al plays an important role in describing the inner structure of the ba nd. The decay widths are calculated in a flux-tube breaking mechanism and compared to data and other models.