STI Publications - View Publication Form #7790
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Publication Information
| Title | First results from 2+1-Flavor Domain Wall QCD: Mass Spectrum, Topology Change and Chiral Symmetry with $L_s=8$ | ||||
| Abstract | We present results for the static interquark potential, light meson and baryon masses, and light pseudoscalar meson decay constants obtained from simulations of domain wall QCD with one dynamical flavour approximating the $s$ quark, and two degenerate dynamical flavours with input bare masses ranging from $m_s$ to $m_s/4$ approximating the $u$ and $d$ quarks. We compare these quantities obtained using the Iwasaki and DBW2 improved gauge actions, and actions with larger rectangle coefficients, on $16^3\times32$ lattices. We seek parameter values at which both the chiral symmetry breaking residual mass due to the finite lattice extent in the fifth dimension and the Monte Carlo time history for topological charge are acceptable for this set of quark masses at lattice spacings above 0.1 fm. We find that the Iwasaki gauge action is best, demonstrating the feasibility of using QCDOC to generate ensembles which are good representations of the QCD path integral on lattices of up to 3 fm in spa | ||||
| Author(s) | David Antonio, Thomas Blum, Kenneth Bowler, Patrick Boyle, Norman Christ, Saul Cohen, Chris Dawson, A. Hart, K. Hashimoto, T. Izubuchi, Balint Joo  , Chulwoo Jung , Anthony D. Kennedy, Richard Kenway, S. Li, Huey-Wen Lin, Meifeng Lin, Robert Mawhinney, Christopher Maynard, J. Noaki., Shigemi Ohta, S. Sasaki, Amarjit Soni, Azusa Yamaguchi |
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| Publication Date | June 2007 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | University of Edinburgh, Edinburgh, Scotland | ||||
| Affiliation | Comp Sci&Tech (CST) Div / Scientific Computing / Scientific Computing | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review D |
| Refereed | Yes |
| Volume | 75 |
| Issue | |
| Page(s) | 114501 |
Attachments/Datasets/DOI Link
| Document(s) |
JLAB-IT-07-06.pdf
(STI Document)
|
| Dataset(s) | (none) |
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