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FLIC fermions and hadron phenomenology

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Abstract.

A pedagogical overview of the formulation of the Fat-Link-Irrelevant-Clover (FLIC) fermion action and its associated phenomenology is described. The scaling analysis indicates FLIC fermions provide a new form of nonperturbative \({\mathcal O}(a)\) improvement where near-continuum results are obtained at finite lattice spacing. Spin-(1/2) and spin-(3/2), even- and odd-parity baryon resonances are investigated in quenched QCD, where the nature of the Roper resonance and \(\Lambda^*(1405)\) are of particular interest. FLIC fermions allow efficient access to the light-quark-mass regime, where evidence of chiral nonanalytic behavior in the \(\Delta\) mass is observed.

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Authors and Affiliations

  1. Centre for the Subatomic Structure of Matter and Department of Physics and Mathematical Physics, University of Adelaide, SA 5005, Adelaide, Australia

    D. B. Leinweber, J. N. Hedditch, W. Melnitchouk, A. W. Thomas, A. G. Williams, R. D. Young, J. M. Zanotti & J. B. Zhang

  2. Jefferson Lab, 12000 Jefferson Avenue, VA 23606, Newport News, USA

    W. Melnitchouk

Authors
  1. D. B. Leinweber
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  2. J. N. Hedditch
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  3. W. Melnitchouk
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  4. A. W. Thomas
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  5. A. G. Williams
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  6. R. D. Young
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  7. J. M. Zanotti
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  8. J. B. Zhang
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Corresponding author

Correspondence to D. B. Leinweber.

Additional information

Received: 30 September 2002, Published online: 22 October 2003

PACS:

12.38.Gc Lattice QCD calculations - 12.38.Aw General properties of QCD (dynamics, confinement, etc.)

D.B. Leinweber: Plenary talk presented by Derek Leinweber

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Leinweber, D.B., Hedditch, J.N., Melnitchouk, W. et al. FLIC fermions and hadron phenomenology. Eur. Phys. J. A 18, 247–252 (2003). https://doi.org/10.1140/epja/i2002-10209-3

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  • DOI: https://doi.org/10.1140/epja/i2002-10209-3

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