Understand
We study the behavior of the isovector scalar correlator, which is particularly sensitive to lattice artifacts, using domain-wall valence quarks on a staggered sea (generated by the MILC collaboration).
- We analyze this according to the prediction from chiral perturbation theory determined by Prelovsek, which indicates that the leading unitarity violations come from taste breaking effects.
- We show that our data behaves in the way predicted by Prelovsek, thus verifying that the largest contribution to the violations of unitarity which arise at finite lattice spacing can be described by the mixed-action chiral perturbation theory.
Built on
V. Furman and Y. Shamir, Axial symmetries in lattice QCD with Kaplan fermions
1995
Earlier work this paper cites.
W.-J. Lee and S. R. Sharpe, Partial flavor symmetry restoration for chiral staggered fermions
1999
Earlier work this paper cites.
W. A. Bardeen, A. Duncan, E. Eichten, N. Isgur, and H. Thacker, Chiral loops and ghost states in the quenched scalar propagator
2002
Earlier work this paper cites.
C. Aubin and C. Bernard, Pion and kaon masses in staggered chiral perturbation theory
2003
Earlier work this paper cites.
C. Aubin et al
2004
Earlier work this paper cites.
Similar
2004
Cited alongside, same era.
Lattice Hadron Physics
2005
Cited alongside, same era.
M. Golterman, T. Izubuchi, and Y. Shamir, The role of the double pole in lattice QCD with mixed actions
2005
Cited alongside, same era.
O. Bär, C. Bernard, G. Rupak, and N. Shoresh, Chiral perturbation theory for staggered sea quarks and Ginsparg-Wilson valence quarks
2005
Cited alongside, same era.
S. R. Beane, P. F. Bedaque, K. Orginos, and M. J. Savage, Nucleon nucleon scattering from fully-dynamical lattice QCD
2006
Cited alongside, same era.
S. R. Beane et al
Cited in the paper.
Talk given by Jack Laiho at the workshop on Domain Wall Fermions at Ten Years
Cited in the paper.
Cited in the paper.
Then
S. Prelovsek, Effects of staggered fermions and mixed actions on the scalar correlator
2006
Later among the works it cites.
S. R. Sharpe, Rooted staggered fermions: Good, bad or ugly?
2006
Later among the works it cites.
these proceedings
C. Aubin, J. Laiho, and R. S. Van de Water, The kaon B-parameter from unquenched mixed action lattice QCD · 2007
Closest in time.
C. Aubin, J. Laiho, and R. S. Van de Water, The kaon b-parameter in mixed action chiral perturbation theory
2007
Closest in time.
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