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Kl3 semileptonic form factor from (2+1)-flavor lattice QCD

Record type: Article

We present the first results for the Kl3 form factor from simulations with 2+1 flavors of dynamical domain wall quarks. Combining our result, namely, f+(0)=0.964(5) with the latest experimental results for Kl3 decays leads to |Vus|=0.2249(14), reducing the uncertaintity in this important parameter. For the O(p6) term in the chiral expansion we obtain f=-0.013(5).

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Citation

Boyle, P., Jüttner, A., Kenway, R.D., Sachrajda, C.T., Sasaki, S., Soni, A., Tweedie, R.J. and Zanotti, J.M. (2008) Kl3 semileptonic form factor from (2+1)-flavor lattice QCD Physical Review Letters, 100, (14), 141601-[4pp]. (doi:10.1103/PhysRevLett.100.141601).

More information

Submitted date: 26 October 2007
e-pub ahead of print date: 9 April 2008
Published date: 11 April 2008
Organisations: High Energy Physics

Identifiers

Local EPrints ID: 143319
URI: http://eprints.soton.ac.uk/id/eprint/143319
PURE UUID: e7053035-14a7-4f28-abb3-7f444e5a030b

Catalogue record

Date deposited: 26 May 2010 08:24
Last modified: 18 Jul 2017 23:10

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Contributors

Author: P. Boyle
Author: A. Jüttner
Author: R.D. Kenway
Author: C.T. Sachrajda
Author: S. Sasaki
Author: A. Soni
Author: R.J. Tweedie
Author: J.M. Zanotti

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