A note on Koide's lepton mass relation

Abstract

Koide has pointed out that the mass relation $m_e+m_{\mu }+m_{\tau }=\frac{2}{3}(\sqrt{m_e}+\sqrt{m_{\mu }}+\sqrt{m_{\tau }}{)}^2$ is consistent with the most recent measurements of the tau lepton mass. We point out that this relation has a geometric interpretation.

Comments: 4, McGill/94-9