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arXiv · hep-lat/0106022

Negative-parity Baryon Masses using an O(a)-improved Fermion Action

LHPC Collaboration·QCDSF Collaboration·UKQCD Collaboration·M. Gockeler·R. Horsley·C. M. Maynard·D. Pleiter·P. E. L. Rakow·D. G. Richards·G. Schierholz
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Abstract

We present a calculation of the mass of the lowest-lying negative-parity J=1/2- state in quenched QCD. Results are obtained using a non-perturbatively O(a)-improved clover fermion action, and a splitting is found between the mass of the nucleon and its parity partner. The calculation is performed on two lattice volumes and at three lattice spacings, enabling a study of both finite-volume and finite lattice-spacing uncertainties. A comparison is made with results obtained using the unimproved Wilson fermion action.

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BibTeXRIS

LHPC Collaboration, QCDSF Collaboration, UKQCD Collaboration, M. Gockeler, R. Horsley, C. M. Maynard, D. Pleiter, P. E. L. Rakow, D. G. Richards, G. Schierholz. 2002-04-11. Negative-parity Baryon Masses using an O(a)-improved Fermion Action. https://doi.org/10.1016/s0370-2693(02)01492-2

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