Kl3 semileptonic form factor from 2+1 flavour lattice QCD

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dc.creatorBoyle, P. A.
dc.creatorJüttner, A.
dc.creatorKenway, R. D.
dc.creatorSachrajda, C. T.
dc.creatorSasaki, S.
dc.creatorSoni, A.
dc.creatorTweedie, R. J.
dc.creatorZanotti, J. M.
dc.date2007-10-26
dc.date2008-12-22
dc.date.accessioned2026-07-07T12:20:42Z
dc.date.available2026-07-07T12:20:42Z
dc.descriptionWe present the first results for the Kl3 form factor from simulations with 2+1 flavours of dynamical domain wall quarks. Combining our result, namely f_+(0)=0.964(5), with the latest experimental results for Kl3 decays leads to |V_{us}|=0.2249(14), reducing the uncertaintity in this important parameter. For the O(p^6) term in the chiral expansion we obtain Δf=-0.013(5).
dc.description4 pages, 3 figures, 4 tables, matches version appearing in Phys.Rev.Lett
dc.identifierhttps://arxiv.org/abs/0710.5136
dc.identifierhttp://arxiv.org/abs/0710.5136
dc.identifierPhys.Rev.Lett.100:141601,2008
dc.identifierdoi:10.1103/PhysRevLett.100.141601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213141
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleKl3 semileptonic form factor from 2+1 flavour lattice QCD
dc.typetext

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