Negative-parity Nucleon Resonance in the QCD Sum Rule
D. Jido, N. Kodama, M. Oka
Abstract
The negative-parity baryons are studied by a novel approach in the QCD sum rule. It is found that the parity of the ground-state nucleon is determined by the sign of the quark condensate. We predict the mass of negative-parity nucleon.
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