Topological susceptibility with the improved Asqtad action

C. Bernard, T. Burch, T. A. DeGrand, C. E. DeTar, Steven Gottlieb, E. Gregory, A. Hasenfratz, U. M. Heller, J. Hetrick, J. Osborn, R. L. Sugar, D. Toussaint

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


As a test of the chiral properties of the improved Asqtad (staggered fermion) action, we have been measuring the topological susceptibility as a function of quark masses for 2 + 1 dynamical flavors. We report preliminary results, which show reasonable agreement with leading order chiral perturbation theory for lattice spacing less than 0.1 fm. The total topological charge, however, shows strong persistence over Monte Carlo time.

Original languageEnglish (US)
Pages (from-to)991-993
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
StatePublished - May 2003
Externally publishedYes

ASJC Scopus subject areas

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


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