Excited nucleon spectrum with two flavors of dynamical fermions
Bulava, John M. · Edwards, Robert G. · Engelson, Eric · Joó, Bálint · Lichtl, Adam · Lin, Huey-Wen · Mathur, Nilmani · Morningstar, Colin · Richards, David G. · Wallace, Stephen J.
Original · EN
We compute the spectrum of excited nucleons using the anisotropic Wilson lattice with two flavors of dynamical fermions. Using optimized sets of operators which transform irreducibly under the octahedral group, matrices of correlation functions are computed. We apply the variational method to these matrices to extract excited energy eigenstates. We obtain several states for each irrep and identify the continuum spin for the lowest-lying states, including a Jᵖ=5/2- state.
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