K(l3) form factor with N(f) = 2+1 dynamical domain wall fermions: A progress report
K(l3) form factor with N(f) = 2+1 dynamical domain wall fermions: A progress report
We present the latest results from the UKQCD/RBC collaborations for the Kl3 form factor from simulations with 2 + 1 flavours of dynamical domain wall quarks. Simulations are performed on lattices with two different volumes and four values of the light quark mass, allowing for an extrapolation to the chiral limit. The analysis includes a thorough investigation into the sources of systematic error in our fits. After interpolating to zero momentum transfer, we obtain f+(0) = 0.964(5) (or ?f = -0.013(5)) which, when combined with the latest experimental results for Kl3 decays, leads to |Vus| = 0.2249(14).
102012 -[6pp]
Boyle, P.A.
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Flynn, J.M.
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Juttner, A.
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Kenway, R.D.
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Sachrajda, C.T.
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Sasaki, S.
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Soni, A.
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Tweedie, R.J.
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Zanotti, J.M.
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2007
Boyle, P.A.
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Flynn, J.M.
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Juttner, A.
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Kenway, R.D.
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Sachrajda, C.T.
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Sasaki, S.
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Soni, A.
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Tweedie, R.J.
c6bfd9bb-6c20-4ce7-aac1-48f6c3cf2f08
Zanotti, J.M.
3683c637-7418-47b0-bb9d-2b704d28bd2d
Boyle, P.A., Flynn, J.M., Juttner, A., Kenway, R.D., Sachrajda, C.T., Sasaki, S., Soni, A., Tweedie, R.J. and Zanotti, J.M.
(2007)
K(l3) form factor with N(f) = 2+1 dynamical domain wall fermions: A progress report.
Journal of Physics: Conference Series, 110, .
(doi:10.1088/1742-6596/110/10/102012).
Abstract
We present the latest results from the UKQCD/RBC collaborations for the Kl3 form factor from simulations with 2 + 1 flavours of dynamical domain wall quarks. Simulations are performed on lattices with two different volumes and four values of the light quark mass, allowing for an extrapolation to the chiral limit. The analysis includes a thorough investigation into the sources of systematic error in our fits. After interpolating to zero momentum transfer, we obtain f+(0) = 0.964(5) (or ?f = -0.013(5)) which, when combined with the latest experimental results for Kl3 decays, leads to |Vus| = 0.2249(14).
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Published date: 2007
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Local EPrints ID: 56970
URI: http://eprints.soton.ac.uk/id/eprint/56970
ISSN: 1742-6588
PURE UUID: c2e9aefc-7182-4211-bcd8-b084ed2bcded
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Date deposited: 19 Aug 2008
Last modified: 16 Mar 2024 03:40
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Author:
P.A. Boyle
Author:
R.D. Kenway
Author:
S. Sasaki
Author:
A. Soni
Author:
R.J. Tweedie
Author:
J.M. Zanotti
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