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Type: Conference paper
Title: Kl₃ form factor with Nf = 2+1 dynamical domain wall fermions
Other Titles: Kl(3) form factor with Nf = 2+1 dynamical domain wall fermions
Author: Boyle, P.
Flynn, J.
Juttner, A.
Kenway, R.
Sachrajda, C.
Sasaki, S.
Soni, A.
Tweedie, R.
Zanotti, J.
Citation: The 2007 Europhysics Conference on High Energy Physics - Non-Perturbative Field Theory, String Theory, Quantum Groups and Non-Commutative Geometry; Journal of Physics: Conference Series, vol. 110, no. 10, 2008 / vol.110, iss.10, pp.102012-1-102012-7
Publisher: Institute of Physics Publishing
Publisher Place: UK
Issue Date: 2008
Series/Report no.: Journal of Physics Conference Series
ISSN: 1742-6588
Conference Name: European Physical Society (EPS) Europhysics Conference on High Energy Physics (HEP) (19 Jul 2007 - 25 Jul 2007 : Manchester, England)
Statement of
P A Boyle, J M Flynn, A Jüttner, R D Kenway, C T Sachrajda, S Sasaki, A Soni, R J Tweedie and J M Zanotti
Abstract: We present the latest results from the UKQCD/RBC collaborations for the K(sub)l3 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 Δf = -0.013(5)) which, when combined with the latest experimental results for K(sub)l3 decays, leads to |V(sub)us| = 0.2249(14).
Rights: © 2008 IOP Publishing Ltd
RMID: 0020120200
DOI: 10.1088/1742-6596/110/0/102012
Appears in Collections:Chemistry and Physics publications

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