Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/77534
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Type: Conference paper
Title: Kaon semileptonic decays near the physical point
Author: Sivalingam, K.
Boyle, P.
Flynn, J.
Juttner, A.
Sachrajda, C.
Zanotti, J.
Citation: PoS (Lattice 2012); 112
Publisher: Proceedings of Science
Publisher Place: Italy
Issue Date: 2012
ISSN: 1824-8039
Conference Name: International Symposium on Lattice Field Theory (30th : 2012 : Cairns, Australia)
Statement of
Responsibility: 
K. Sivalingam, P.A. Boyle, J.M. Flynn, A. Jüttner, C.T. Sachrajda, J.M. Zanotti, RBC and UKQCD Collaborations
Abstract: The CKM matrix element jVusj can be extracted from the experimental measurement of semileptonic K -φ decays. The determination depends on theory input for the corresponding vector form factor in QCD. We present a preliminary update on our efforts to compute it in Nf = 2+1 lattice QCD using domain wall fermions for several lattice spacings and with a lightest pion mass of about 170MeV. By using partially twisted boundary conditions we avoid systematic errors associated with an interpolation of the form factor in momentum-transfer, while simulated pion masses near the physical point reduce the systematic error due to the chiral extrapolation.
Description: Extent: 7p.
Rights: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence
DOI: 10.22323/1.164.0112
Description (link): http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=164
Published version: http://pos.sissa.it/archive/conferences/164/112/Lattice%202012_112.pdf
Appears in Collections:Aurora harvest 4
Special Research Centre for the Subatomic Structure of Matter publications

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