TY - JOUR
T1 - Kl3 form factor with Nf = 2+1 dynamical domain wall fermions
AU - Boyle, P. A.
AU - Kenway, R. D.
AU - Tweedie, R. J.
AU - Zanotti, J. M.
AU - Jüttner, A.
AU - Flynn, J. M.
AU - Sachrajda, C. T.
AU - Sasaki, S.
AU - Soni, A.
N1 - Funding Information:
We thank D. Chen, N. Christ, M. Clark, S. Cohen, C. Cristian, Z. Dong, A. Gara, A. Jackson, C. Jung, C. Kim, L. Levko-va, X. Liao, G. Liu, R. Mawhinney, S. Ohta, K. Petrov, T. Wettig and A. Yamaguchi for developing with us the QCDOC machine and its software. This development and resulting computer equipment were funded by U.S. DOE grant DE-FG02-92ER40699, PPARC JIF grant PPA/J/S/1998/00756 and RIKEN. This work was supported by DOE grants DE-FG02-92ER40699 and DE-AC02-98CH10886, PPARC grants PPA/G/O/2002/00465, PP/D000238/1, PP/ C504386/1, PPA/G/S/2002/00467 and PP/D000211/1 and JSPS grant (19540265). We thank BNL,
Publisher Copyright:
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PY - 2007
Y1 - 2007
N2 - 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).
AB - 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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M3 - Conference article
AN - SCOPUS:85055427459
VL - 42
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
M1 - 380
T2 - 25th International Symposium on Lattice Field Theory, LATTICE 2007
Y2 - 30 July 2007 through 4 August 2007
ER -