Isospin violation and hyperon semileptonic decays
โ Scribed by Gabriel Karl
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 250 KB
- Volume
- 328
- Category
- Article
- ISSN
- 0370-2693
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
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 toget
We present preliminary results of an exploratory lattice study of the vector form factor f1(q 2 = 0) relevant for the semileptonic hyperon decay ฮฃ -โ n l ฮฝ. This study is based on the same method used for the extraction of f + (0) for the decay K 0 โ ฯ -l ฮฝ. The main purpose of this study is to test