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

doi:10.1016/S0920-5632(03)01740-7

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 journal › Article › peer-review

4 Scopus citations

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.

Original language	English (US)
Pages (from-to)	991-993
Number of pages	3
Journal	Nuclear Physics B - Proceedings Supplements
Volume	119
DOIs	https://doi.org/10.1016/S0920-5632(03)01740-7
State	Published - May 2003
Externally published	Yes

ASJC Scopus subject areas

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

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10.1016/S0920-5632(03)01740-7

Cite this

@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.",

}

TY - JOUR

T1 - Topological susceptibility with the improved Asqtad action

AU - Bernard, C.

AU - Burch, T.

AU - DeGrand, T. A.

AU - DeTar, C. E.

AU - Gottlieb, Steven

AU - Gregory, E.

AU - Hasenfratz, A.

AU - Heller, U. M.

AU - Hetrick, J.

AU - Osborn, J.

AU - Sugar, R. L.

AU - Toussaint, D.

N1 - 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.

PY - 2003/5

Y1 - 2003/5

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0037609774

UR - https://www.scopus.com/pages/publications/0037609774#tab=citedBy

U2 - 10.1016/S0920-5632(03)01740-7

DO - 10.1016/S0920-5632(03)01740-7

M3 - Article

AN - SCOPUS:0037609774

SN - 0920-5632

VL - 119

SP - 991

EP - 993

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

ER -

Topological susceptibility with the improved Asqtad action

Abstract

ASJC Scopus subject areas

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