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Kl3 form factor with Nf = 2+1 dynamical domain wall fermions

Kl3 form factor with Nf = 2+1 dynamical domain wall fermions
Kl3 form factor with Nf = 2+1 dynamical domain wall fermions
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 jVusj = 0:2249(14).
1-7
Boyle, P.A.
deafc6c3-3d18-4199-84f5-6f20cd03e311
Kenway, R.D.
1c60cf01-7151-491f-9ab4-18cebc6da3ea
Tweedie, R.J.
c6bfd9bb-6c20-4ce7-aac1-48f6c3cf2f08
Zanotti, J.M.
3683c637-7418-47b0-bb9d-2b704d28bd2d
Jüttner, A.
83e336df-c2b2-455d-b9d4-9abbd490e930
Flynn, J.M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Sachrajda, C.T.
0ed6568b-f52f-4314-8677-4aeeb925d6f7
Sasaki, S.
d56b8ebe-fb17-47fe-b19e-760aec61f9cb
Soni, A.
7a4196ff-0f6b-429e-af54-d1036e9c433b
RBC + UKQCD Collaborations
Boyle, P.A.
deafc6c3-3d18-4199-84f5-6f20cd03e311
Kenway, R.D.
1c60cf01-7151-491f-9ab4-18cebc6da3ea
Tweedie, R.J.
c6bfd9bb-6c20-4ce7-aac1-48f6c3cf2f08
Zanotti, J.M.
3683c637-7418-47b0-bb9d-2b704d28bd2d
Jüttner, A.
83e336df-c2b2-455d-b9d4-9abbd490e930
Flynn, J.M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Sachrajda, C.T.
0ed6568b-f52f-4314-8677-4aeeb925d6f7
Sasaki, S.
d56b8ebe-fb17-47fe-b19e-760aec61f9cb
Soni, A.
7a4196ff-0f6b-429e-af54-d1036e9c433b

Boyle, P.A., Kenway, R.D., Tweedie, R.J., Zanotti, J.M., Jüttner, A., Flynn, J.M., Sachrajda, C.T., Sasaki, S. and Soni, A. , RBC + UKQCD Collaborations (2007) Kl3 form factor with Nf = 2+1 dynamical domain wall fermions. Proceedings of Science, PoS (LATTICE 20), 1-7.

Record type: Article

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 jVusj = 0:2249(14).

Full text not available from this repository.

More information

Published date: 2007
Additional Information: XXV International Symposium on Lattice Field Theory July 30-4 August 2007 Regensburg, Germany

Identifiers

Local EPrints ID: 64265
URI: https://eprints.soton.ac.uk/id/eprint/64265
PURE UUID: d8c28f9b-d6d1-49bc-9a5c-64bcc895b83c
ORCID for J.M. Flynn: ORCID iD orcid.org/0000-0002-6280-1677

Catalogue record

Date deposited: 13 Jan 2009
Last modified: 14 Mar 2019 01:53

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