Baryons in 2+1 flavour domain wall QCD

D. J. Antonio; K. C. Bowler; P. A. Boyle; M. A. Clark; B. Joó; A. D. Kennedy; R. D. Kenway; C. M. Maynard; R. J. Tweedie; A. Yamaguchi

doi:10.22323/1.020.0098

Baryons in 2+1 flavour domain wall QCD

D. J. Antonio, K. C. Bowler, P. A. Boyle, M. A. Clark, B. Joó, A. D. Kennedy, R. D. Kenway, C. M. Maynard, R. J. Tweedie, A. Yamaguchi

Research output: Contribution to journal › Conference article › peer-review

Abstract

We present results for some of the light baryon masses and their excited states in 2+1 flavour domain wall QCD. We considered several lattice spacings, with the DBW2 and Iwasaki gauge actions and different sea quark masses on a volume of 16³ × 32 and a fifth dimension of size 8. All data were generated on the QCDOC machines. Despite large residual massses and a limited number of sea quark mass values with which to perform chiral extrapolations, our results are in reasonable agreement with experiment and scale within errors. Finite size effects on most ensembles appear to be small.

Original language	English
Journal	Proceedings of Science
Volume	20
DOIs	https://doi.org/10.22323/1.020.0098
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 Saul Cohen, 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
PPARC	PPA/J/S/1998/00756
U.S. Department of Energy	DE-FG02-92ER40699
RIKEN	PPA/G/O/2002/00465

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title = "Baryons in 2+1 flavour domain wall QCD",

abstract = "We present results for some of the light baryon masses and their excited states in 2+1 flavour domain wall QCD. We considered several lattice spacings, with the DBW2 and Iwasaki gauge actions and different sea quark masses on a volume of 163 × 32 and a fifth dimension of size 8. All data were generated on the QCDOC machines. Despite large residual massses and a limited number of sea quark mass values with which to perform chiral extrapolations, our results are in reasonable agreement with experiment and scale within errors. Finite size effects on most ensembles appear to be small.",

author = "Antonio, {D. J.} and Bowler, {K. C.} and Boyle, {P. A.} and Clark, {M. A.} and B. Jo{\'o} and Kennedy, {A. D.} and Kenway, {R. D.} and Maynard, {C. M.} and Tweedie, {R. J.} and A. Yamaguchi",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-ShareAlike Licence.; 23rd International Symposium on Lattice Field Theory, LAT 2005 ; Conference date: 25-07-2005 Through 30-07-2005",

year = "2005",

doi = "10.22323/1.020.0098",

language = "English",

volume = "20",

journal = "Proceedings of Science",

issn = "1824-8039",

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TY - JOUR

T1 - Baryons in 2+1 flavour domain wall QCD

AU - Antonio, D. J.

AU - Bowler, K. C.

AU - Boyle, P. A.

AU - Clark, M. A.

AU - Joó, B.

AU - Kennedy, A. D.

AU - Kenway, R. D.

AU - Maynard, C. M.

AU - Tweedie, R. J.

AU - Yamaguchi, A.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-ShareAlike Licence.

PY - 2005

Y1 - 2005

N2 - We present results for some of the light baryon masses and their excited states in 2+1 flavour domain wall QCD. We considered several lattice spacings, with the DBW2 and Iwasaki gauge actions and different sea quark masses on a volume of 163 × 32 and a fifth dimension of size 8. All data were generated on the QCDOC machines. Despite large residual massses and a limited number of sea quark mass values with which to perform chiral extrapolations, our results are in reasonable agreement with experiment and scale within errors. Finite size effects on most ensembles appear to be small.

AB - We present results for some of the light baryon masses and their excited states in 2+1 flavour domain wall QCD. We considered several lattice spacings, with the DBW2 and Iwasaki gauge actions and different sea quark masses on a volume of 163 × 32 and a fifth dimension of size 8. All data were generated on the QCDOC machines. Despite large residual massses and a limited number of sea quark mass values with which to perform chiral extrapolations, our results are in reasonable agreement with experiment and scale within errors. Finite size effects on most ensembles appear to be small.

UR - http://www.scopus.com/inward/record.url?scp=85056833060&partnerID=8YFLogxK

U2 - 10.22323/1.020.0098

DO - 10.22323/1.020.0098

M3 - Conference article

AN - SCOPUS:85056833060

SN - 1824-8039

VL - 20

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 23rd International Symposium on Lattice Field Theory, LAT 2005

Y2 - 25 July 2005 through 30 July 2005

ER -

Baryons in 2+1 flavour domain wall QCD

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