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

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We present a calculation of the mass of the lowest-lying negative-parity J=1/2{sup {minus}} state in quenched QCD. Results are obtained using a non-perturbatively {Omicron}(a)-improved clover fermion action, and a splitting found between the masses 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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460 Kilobytes pages

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Gockeler, M.; Horsley, R.; Pleiter, D.; Rakow, P.E.L.; Schierholz, G.; Maynard, C.M. et al. June 1, 2001.

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We present a calculation of the mass of the lowest-lying negative-parity J=1/2{sup {minus}} state in quenched QCD. Results are obtained using a non-perturbatively {Omicron}(a)-improved clover fermion action, and a splitting found between the masses 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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460 Kilobytes pages

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  • Journal Name: submitted to Physics Letters B; Other Information: Submitted to Physics Letters B

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  • Report No.: JLAB-THY-01-17
  • Report No.: DOE/ER/40150-1851
  • Report No.: Edinburgh-2001/05
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 781926
  • Archival Resource Key: ark:/67531/metadc724561

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  • June 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:51 p.m.

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Gockeler, M.; Horsley, R.; Pleiter, D.; Rakow, P.E.L.; Schierholz, G.; Maynard, C.M. et al. Negative-Parity Baryon Masses Using O(a)-improved Fermion Action, article, June 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc724561/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.