Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-02-23
Phys.Rev.Lett.95:171804,2005
Physics
High Energy Physics
High Energy Physics - Phenomenology
v2: few extra comments added; slightly shorter version published in PRL
Scientific paper
10.1103/PhysRevLett.95.171804
The evolution of Standard Model gauge couplings is studied in a non-supersymmetric scenario in which the hierarchy problem is resolved by Higgs compositeness above the weak scale. It is argued that massiveness of the top quark combined with precision tests of the bottom quark imply that the right-handed top must also be composite. If, further, the Standard Model gauge symmetry is embedded into a simple subgroup of the unbroken composite-sector flavor symmetry, then precision coupling unification is shown to occur at~10^{15} GeV, to a degree comparable to supersymmetric unification.
Agashe Kaustubh
Contino Roberto
Sundrum Raman
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