Baryon resonances from a novel fat-link fermion action
Date
2002
Authors
Melnitchouk, W.
Bilson-Thompson, S.
Bonnet, F.
Coddington, P.
Leinweber, D.
Williams, A.
Zanotti, J.
Zhang, J.
Lee, F.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Nuclear Physics B - Proceedings Supplements, 2002, vol.109, iss.1, pp.96-100
Statement of Responsibility
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
Conference Name
Workshop on Lattice Hadron Physics (9 Jul 2001 - 18 Jul 2001 : CAIRNS, AUSTRALIA)
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.
School/Discipline
Dissertation Note
Provenance
Description
Copyright © 2002 Published by Elsevier Science B.V. All rights reserved. Copyright © 2002. Submitted to Cornell University’s online archive www.arXiv.org in 2002 by James Zanotti. Post-print sourced from www.arxiv.org.