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Type: Journal article
Title: Baryon resonances from a novel fat-link fermion action
Author: Melnitchouk, W.
Bilson-Thompson, S.
Bonnet, F.
Coddington, P.
Leinweber, D.
Williams, A.
Zanotti, J.
Zhang, J.
Lee, F.
Citation: Nuclear Physics B-Proceedings Supplements, 2002; 109(1):96-100
Publisher: Elsevier Science BV
Issue Date: 2002
ISSN: 0920-5632
Organisation: Special Research Centre for the Subatomic Structure of Matter
Statement of
W. Melnitchouk, S. Bilson-Thompson, F. D. R. Bonnet, P. D. Coddington, D. B. Leinweber, A. G. Williams, J. M. Zanotti, J. B. Zhang and F. X. Lee
Abstract: We present first results for masses of positive and negative parity excited baryons in lattice QCD using an ∂ (a2) improved gluon action and a Fat Link Irrelevant Clover (FLIC) fermion action in which only the irrelevant operators are constructed with fat links. The results are in agreement with earlier calculations of N* resonances using improved actions and exhibit a clear mass splitting between the nucleon and its chiral partner, even for the Wilson fermion action. The results also indicate a splitting between the lowest JP = ½ − states for the two standard nucleon interpolating fields.
Description: Copyright © 2002 Published by Elsevier Science B.V. All rights reserved. Copyright © 2002. Submitted to Cornell University’s online archive in 2002 by James Zanotti. Post-print sourced from
RMID: 0020020132
DOI: 10.1016/S0920-5632(02)01396-8
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Appears in Collections:Special Research Centre for the Subatomic Structure of Matter publications

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