Topological susceptibility in staggered fermion chiral perturbation theory
Journal Article
·
· Physical Review. D, Particles Fields
- Physics Department, University of Utah, Salt Lake City, Utah 84112 (United States)
The topological susceptibility of the vacuum in quantum chromodynamics has been simulated numerically using the Asqtad improved staggered fermion formalism. At nonzero lattice spacing, the residual fermion doublers (fermion tastes) in the staggered fermion formalism give contributions to the susceptibility that deviate from conventional continuum chiral perturbation theory. In this brief report, we estimate the taste-breaking artifact and compare it with results of recent simulations, finding that it accounts for roughly half of the scaling violation.
- OSTI ID:
- 20705403
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 70, Issue 7; Other Information: DOI: 10.1103/PhysRevD.70.077502; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Scalar meson spectroscopy with lattice staggered fermions
Mixed action simulations on a staggered background: Interpretation and result for the 2-flavor QCD chiral condensate
Staggered chiral perturbation theory at next-to-leading order
Journal Article
·
Thu Nov 01 00:00:00 EDT 2007
· Physical Review. D, Particles Fields
·
OSTI ID:20705403
+1 more
Mixed action simulations on a staggered background: Interpretation and result for the 2-flavor QCD chiral condensate
Journal Article
·
Fri Dec 01 00:00:00 EST 2006
· Physical Review. D, Particles Fields
·
OSTI ID:20705403
Staggered chiral perturbation theory at next-to-leading order
Journal Article
·
Wed Jun 01 00:00:00 EDT 2005
· Physical Review. D, Particles Fields
·
OSTI ID:20705403