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

Univer Bonnet 

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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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