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FLIC fermions and hadron phenomenology

  • D. B. Leinweber
  • J. N. Hedditch
  • W. Melnitchouk
  • A. W. Thomas
  • A. G. Williams
  • R. D. Young
  • J. M. Zanotti
  • J. B. Zhang
Conference paper

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 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 Λ*(1405) are of particular interest. FLIC fermions allow efficient access to the light-quark-mass regime, where evidence of chiral nonanalytic behavior in the Δ mass is observed.

Keywords

Chiral Perturbation Theory Light Quark Masse Fermion Action Roper Resonance Parity Partner 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • D. B. Leinweber
    • 1
  • J. N. Hedditch
    • 1
  • W. Melnitchouk
    • 1
    • 2
  • A. W. Thomas
    • 1
  • A. G. Williams
    • 1
  • R. D. Young
    • 1
  • J. M. Zanotti
    • 1
  • J. B. Zhang
    • 1
  1. 1.Centre for the Subatomic Structure of Matter and Department of Physics and Mathematical PhysicsUniversity of AdelaideAdelaideAustralia
  2. 2.Jefferson LabNewport NewsUSA

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