Isospin Violation in Hyperon Semileptonic Decays
arXiv:hep-ph/9910418
Abstract
This note emphasizes that due to isospin violation the two central states in the octet mix, and this mixing can be measured in semileptonic decays, in particular with an accurate determination of the sigma plus semileptonic branching ratio.
3 pages, contribution to Hyperon 99