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Hyperon Semileptonic Decays and CKM Unitarity

โœ Scribed by V. Mateu

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
182 KB
Volume
164
Category
Article
ISSN
0920-5632

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โœฆ Synopsis

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 ยฑ 0.005 together with those coming from other sources we test the unitarity of the CKM matrix.

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