Instanton effects in hadron spectroscopy revisited

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Abstract

We use an optimised clover action to study spectroscopy on an instanton ensemble reconstructed from smoothed Monte Carlo configurations. Due to the better chirality of the clover action, the artificial configurations show a marked difference from the free field behaviour obtained with the Wilson action. They however still fail to reproduce the physics observed on the smoothed configurations. The presence of freely propagating quark modes is found to be responsible for this.

Original languageEnglish
Pages (from-to)500-502
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
Volume83-84
Issue number1-3
Publication statusPublished - Mar 2000

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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