Negative-Parity Baryon Masses Using an O(a)-Improved Fermion Action

Authors

M. Göckeler
R. Horsley
D. Pleiter
P. E. L. Rakow
G. Schierholz
C. M. Maynard
D. G. Richards

Document Type

Article

Publication Date

2002

DOI

10.1016/S0370-2693(02)01492-2

Publication Title

Physics Letters B

Volume

532

Issue

1-2

Pages

63-70

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.

Comments

Open access under CC BY license.

Original Publication Citation

Göckeler, M., Horsley, R., Pleiter, D., Rakow, P. E. L., Schierholz, G., Maynard, C. M., & Richards, D. G. (2002). Negative-parity baryon masses using an O(a)-improved fermion action. Physics Letters B, 532(1–2), 63-70. doi:https://doi.org/10.1016/S0370-2693(02)01492-2

Repository Citation

Göckeler, M.; Horsley, R.; Pleiter, D.; Rakow, P. E. L.; Schierholz, G.; Maynard, C. M.; and Richards, D. G., "Negative-Parity Baryon Masses Using an O(a)-Improved Fermion Action" (2002). Physics Faculty Publications. 108.
https://digitalcommons.odu.edu/physics_fac_pubs/108