Baryon spectroscopy in lattice QCD with spin identification

Lattice QCD calculations are presented for the spectra of N* excited states with spins up to J = 7/2. The lattice operators and analysis methods used to identify the continuum spins in the lattice calculations are reviewed. In simulations with mπ ≥ 392 MeV, the low-lying excited states of lattice QCD are found to have the same quantum numbers as the states of SU(6) ⊗O(3) symmetry. The lattice spectra are inconsistent with either a quark-diquark model or parity doubling of states.