Regularities in electromagnetic decay widths

Abstract

We revisit Sakurai's remark on the regularities of lepton-pair widths for mesons, extending the panorama to radiative $X\to \gamma \gamma$ 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

References in corpus (6)

• Analysis of Pion Photoproduction Data
• Insights on scalar mesons from their radiative decays
• Pseudoscalar Meson Decay Constants and Couplings, the Witten-Veneziano Formula beyond large N_c, and the Topological Susceptibility
• Electron generation of leptons and hadrons with reciprocal alpha-quantized lifetimes and masses
• Anomaly-driven decay of massive vector bosons
• GUT angle minimises $Z^0$ decay

Cited by in corpus (1)

• Third Spectroscopy with a hint of superstrings