Regularities in electromagnetic decay widths
Abstract
Description
We revisit Sakurai's remark on the regularities of lepton-pair widths for mesons, extending the panorama to radiative $X \to γγ$ and total decays. The regularities persist, and somehow surprisingly some of them seem to relate with Fermi's constant -or $Z^0$-.
6 pages, 2 figures
6 pages, 2 figures