# Energy scale independence of Koide's relation for quark and lepton masses

@article{Li2006EnergySI,
title={Energy scale independence of Koide's relation for quark and lepton masses},
author={Nan Li and Bo Qiang Ma},
journal={Physical Review D},
year={2006},
volume={73},
pages={013009}
}
• Published 5 January 2006
• Physics
• Physical Review D
Koide's mass relation of charged leptons has been extended to quarks and neutrinos, and we prove here that this relation is independent of energy scale in a huge energy range from 1 GeV to 2x10{sup 16} GeV. By using the parameters k{sub u}, k{sub d}, and k{sub {nu}} to describe the deviations of quarks and neutrinos from the exact Koide's relation, we also check the quark-lepton complementarity of masses such as k{sub l}+k{sub d}{approx_equal}k{sub {nu}}+k{sub u}{approx_equal}2, and show that…
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