Journal article 1259 views
2+1flavor domain wall QCD on a(2 fm)3lattice: Light meson spectroscopy withLs=16
T. Yamazaki,
A. Soni,
R.D. Kenway,
A. Yamaguchi,
B.J. Pendleton,
K.C. Bowler,
Shigemi Ohta,
Anthony D. Kennedy,
Robert D. Mawhinney,
S. Li,
S. Sasaki,
K. Hashimoto,
M. Li,
N.H. Christ,
C. Jung,
Taku Izubuchi,
C. Dawson,
C.M. Maynard,
J. Noaki,
A. Hart,
Enno E. Scholz,
A. Juttner,
D. Saul 
,
R.J. Tweedie,
M.F. Lin,
M.A. Clark,
D.J. Antonio,
Peter A. Boyle,
Thomas Charles Blum,
Chris Allton
,
R.J. Tweedie,
M.F. Lin,
M.A. Clark,
D.J. Antonio,
Peter A. Boyle,
Thomas Charles Blum,
Chris Allton
Physical Review D, Volume: 76, Issue: 1
Swansea University Author:
Chris Allton
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1103/PhysRevD.76.014504
Abstract
We present results for light meson masses and pseudoscalar decay constants from the first of a series of lattice calculations with 2+1 dynamical flavors of domain wall fermions and the Iwasaki gauge action. The work reported here was done at a fixed lattice spacing of about 0.12 fm on a 16^3\times32...
| Published in: | Physical Review D |
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| ISSN: | 1550-7998 1550-2368 |
| Published: |
2007
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa28498 |
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| Abstract: |
We present results for light meson masses and pseudoscalar decay constants from the first of a series of lattice calculations with 2+1 dynamical flavors of domain wall fermions and the Iwasaki gauge action. The work reported here was done at a fixed lattice spacing of about 0.12 fm on a 16^3\times32 lattice, which amounts to a spatial volume of (2 fm)^3 in physical units. The number of sites in the fifth dimension is 16, which gives m_{res} = 0.00308(4) in these simulations. Three values of input light sea quark masses, m_l^{sea} \approx 0.85 m_s, 0.59 m_s and 0.33 m_s were used to allow for extrapolations to the physical light quark limit, whilst the heavier sea quark mass was fixed to approximately the physical strange quark mass m_s. The exact rational hybrid Monte Carlo algorithm was used to evaluate the fractional powers of the fermion determinants in the ensemble generation. We have found that f_\pi = 127(4) MeV, f_K = 157(5) MeV and f_K/f_\pi = 1.24(2), where the errors are statistical only, which are in good agreement with the experimental values. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
1 |