Lattice Calculation of Baryon Masses using the Clover Fermion Action

Details Lattice Calculation of Baryon Masses using the Clover Fermion Action Lattice Calculation of Baryon Masses using the Clover Fermion Action

2002-06-19

arxiv.org/abs/nucl-th/0206049v1

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures, uses ws-p8-50x6-00.cls. Talk presented at Baryons 2002, Jefferson Laboratory, Newport News, VA, USA, 3rd t

Scientific paper

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

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