Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-03-11
Acta Phys.Polon.B27:3911-3944,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
Based on lectures given by G. Zoupanos in the XXXIV and XXXVI Cracow Schools of Theoretical Particle Physics (Zacopane 1993,19
Scientific paper
Gauge-Yukawa Unification (GYU) is a renormalization group invariant functional relation among gauge and Yukawa couplings which holds beyond the unification point in Grand Unified Theories (GUTs). We present here various models where GYU is obtained by requiring the principles of finiteness and reduction of couplings. We examine the consequences of these requirements for the low energy parameters, especially for the top quark mass. The predictions are such that they clearly distinguish already GYU from ordinary GUTs. It is expected that it will be possible to discriminate among the various GYUs when more accurate measurements of the top quark mass are available.
Kubo Jisuke
Mondragon Myriam
Zoupanos George
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