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Paper detail

Lattice Calculation of Baryon Masses using the Clover Fermion Action

We present a calculation of the lowest-lying baryon masses in the quenched approximation to QCD. The calculations are performed using a non-perturbatively improved clover fermion action, and a splitting is found between the masses of the nucleon and its parity partner. An analysis of the mass of the first radial excitation of the nucleon finds a value considerably larger than that of the parity partner of the nucleon, and thus little evidence for the Roper resonance as a simple three-quark state

preprint2002arXivOpen access
LHPC CollaborationD. G. RichardsQCDSF Collaboration:M. GockelerR. HorsleyD. PleiterP. E. L. RakowG. SchierholzUKQCD collaborationC. M. Maynard
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Open access11 authors1 topic
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LHPC CollaborationD. G. RichardsQCDSF Collaboration:M. GockelerR. HorsleyD. PleiterP. E. L. RakowG. SchierholzUKQCD collaborationC. M. Maynard

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