Abstract
There are a lot of works within a class of classically scale invariant model, which is motivated by solving the gauge hierarchy problem. In this context, the Higgs mass vanishes at the UV scale due to the classically scale invariance, and is generated via the Coleman-Weinberg mechanism. Since the mass generation should occur not so far from the electroweak scale, we extend the standard model only around the TeV scale. We construct a model which can achieve the gauge coupling unification at the UV scale. In the same way, the model can realize the vacuum stability, smallness of active neutrino masses, baryon asymmetry of the universe, and dark matter relic abundance. The model predicts the existence vector-like fermions charged under SU(3) C with masses lower than 1 TeV, and the SM singlet Majorana dark matter with mass lower than 2.6 TeV.
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Haba, N., Ishida, H., Takahashi, R. et al. Gauge coupling unification in a classically scale invariant model. J. High Energ. Phys. 2016, 58 (2016). https://doi.org/10.1007/JHEP02(2016)058
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DOI: https://doi.org/10.1007/JHEP02(2016)058