Exceptional configurations with the clover action

Thomas DeGrand, Anna Hasenfratz, T. Kovács

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We study exceptional modes of both the Wilson and the clover action in order to understand why quenched clover spectroscopy suffers so severely from exceptional configurations. We show that a large clover coefficient can make the exceptional modes extremely localized and thus very sensitive to short distance fluctuations. We contrast this with the case of the Wilson action where exceptional modes correspond to large instantons. These modes are broadly extended and suffer much less from discretization errors.

Original languageEnglish
Pages (from-to)506-508
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
Volume73
Issue number1-3
Publication statusPublished - Mar 1999

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configurations
instantons
coefficients
spectroscopy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Exceptional configurations with the clover action. / DeGrand, Thomas; Hasenfratz, Anna; Kovács, T.

In: Nuclear Physics B - Proceedings Supplements, Vol. 73, No. 1-3, 03.1999, p. 506-508.

Research output: Contribution to journalArticle

DeGrand, Thomas ; Hasenfratz, Anna ; Kovács, T. / Exceptional configurations with the clover action. In: Nuclear Physics B - Proceedings Supplements. 1999 ; Vol. 73, No. 1-3. pp. 506-508.
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