Taste violations in the scalar correlator in mixed action simulations

C. Aubin, Jack Laiho, Ruth S. Van de Water

Research output: Contribution to journalConference Articlepeer-review

2 Scopus citations


We study the behavior of the isovector scalar correlator, which is particularly sensitive to lattice artifacts, using domain-wall valence quarks on a staggered sea (generated by the MILC collaboration). We analyze this according to the prediction from chiral perturbation theory determined by Prelovsek, which indicates that the leading unitarity violations come from taste breaking effects. We show that our data behaves in the way predicted by Prelovsek, thus verifying that the largest contribution to the violations of unitarity which arise at finite lattice spacing can be described by the mixed-action chiral perturbation theory.

Original languageEnglish (US)
Article number088
JournalProceedings of Science
StatePublished - 2007
Externally publishedYes
Event25th International Symposium on Lattice Field Theory, LATTICE 2007 - Regensburg, Germany
Duration: Jul 30 2007Aug 4 2007

ASJC Scopus subject areas

  • General


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