@article{7a31555c0ee3460cbd2a99b2f0c08396,
title = "Topological susceptibility with the improved Asqtad action",
abstract = "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.",
author = "C. Bernard and T. Burch and DeGrand, {T. A.} and DeTar, {C. E.} and Steven Gottlieb and E. Gregory and A. Hasenfratz and Heller, {U. M.} and J. Hetrick and J. Osborn and Sugar, {R. L.} and D. Toussaint",
note = "Funding Information: Our preliminary findings are that the Asqtad action, like the conventional staggered fermion action, requires a lattice spacing less than approximately 0.1 fm to give reasonably good chiral behavior for the topological susceptibility. However, in connection with a small step-size updating algorithm, the action gives strong persistence of the topological charge. We are investigating the implications of these results. Computations were performed at LANL, NERSC, NCSA, ORNL, PSC, SDSC, FNAL, the CHPC (Utah) and the Indiana University SP. This work is support,ed by the U.S. NSF and DOE.",
year = "2003",
month = may,
doi = "10.1016/S0920-5632(03)01740-7",
language = "English (US)",
volume = "119",
pages = "991--993",
journal = "Nuclear Physics B - Proceedings Supplements",
issn = "0920-5632",
publisher = "Elsevier B.V.",
}