Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1848109 | Nuclear Physics B - Proceedings Supplements | 2007 | 4 Pages |
Abstract
We perform a new numerical analysis of hyperon semileptonic decays emphasizing the systematic uncertainties. The poor understanding of SU(3) symmetry breaking effects at second order in the vector form factor translates into a large error of |Vus|. Using our determination |Vus|=0.226±0.005 together with those coming from other sources we test the unitarity of the CKM matrix.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics