Abstract
We present results for light meson masses and psedoscalar meson decay constants in 2+1 flavour domain wall QCD with the DBW2 and Iwasaki gauge actions, using lattices with linear sizes in the range 1.6 to 2.2fm and u and d quark masses as low as one quarter of the strange quark mass. All data were generated on the QCDOC machines at the University of Edinburgh and Brookhaven National Laboratory. Despite large residual masses and a limited number of sea quark mass values with which to perform chiral extrapolations, our results agree with experiment and scale within errors.
| Original language | English |
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| Journal | Proceedings of Science |
| Volume | 20 |
| State | Published - 2005 |
| Externally published | Yes |
| Event | 23rd International Symposium on Lattice Field Theory, LAT 2005 - Dublin, Ireland Duration: Jul 25 2005 → Jul 30 2005 |
Funding
We thank Sam Li and Meifeng Lin for help generating the datasets used in this work. We thank Dong Chen, Norman Christ, Saul Cohen, Calin Cristian, Zhihua Dong, Alan Gara, Andrew Jackson, Chulwoo Jung, Changhoan Kim, Ludmila Levkova, Xiaodong Liao, Guofeng Liu, Robert Mawhinney, Shigemi Ohta, Konstantin Petrov and Tilo Wettig for developing with us the QCDOC machine and its software. This development and the resulting computer equipment used in this calculation were funded by the U.S. DOE grant DE-FG02-92ER40699, PPARC JIF grant PPA/J/S/1998/00756 and by RIKEN. This work was supported by PPARC grant PPA/G/O/2002/00465.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | DE-FG02-92ER40699 |