Topological susceptibility with the improved Asqtad action
| Autor: | James Edward Hetrick, Doug Toussaint, Thomas DeGrand, Robert L. Sugar, Claude Bernard, Urs M. Heller, Carleton DeTar, James C. Osborn, Anna Hasenfratz, T. Burch, Eric Brittain Gregory, Steven Gottlieb |
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| Rok vydání: | 2003 |
| Předmět: |
Physics
Quark Nuclear and High Energy Physics Chiral perturbation theory High Energy Physics::Lattice High Energy Physics - Lattice (hep-lat) High Energy Physics::Phenomenology Monte Carlo method Lattice field theory FOS: Physical sciences Topology Atomic and Molecular Physics and Optics High Energy Physics - Lattice Lattice constant Staggered fermion Perturbation theory (quantum mechanics) Topological quantum number |
| Zdroj: | Nuclear Physics B - Proceedings Supplements. 119:991-993 |
| ISSN: | 0920-5632 |
| DOI: | 10.1016/s0920-5632(03)01740-7 |
| Popis: | 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. Comment: Lattice2002(algor) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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