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Evolution of the Yukawa coupling constants and seesaw operators in the universal seesaw model

Yoshio Koide·Hideo Fusaoka
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Abstract

The general features of the evolution of the Yukawa coupling constants and seesaw operators in the universal seesaw model with det M_F=0 are investigated. Especially, it is checked whether the model causes bursts of Yukawa coupling constants, because in the model not only the magnitude of the Yukawa coupling constant (Y_L^u)_{33} in the up-quark sector but also that of (Y_L^d)_{33} in the down-quark sector is of the order of one, i.e., (Y_L^u)_{33} \sim (Y_L^d)_{33} \sim 1. The requirement that the model should be calculable perturbatively puts some constraints on the values of the intermediate mass scales and tanβ(in the SUSY model).

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Yoshio Koide, Hideo Fusaoka. 2001-05-18. Evolution of the Yukawa coupling constants and seesaw operators in the universal seesaw model. https://doi.org/10.1103/physrevd.64.053014

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