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 |
Files in This Item:
File | Description | Size | Format | |
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hdl_77534.pdf | Published version | 356.74 kB | Adobe PDF | View/Open |
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