A model for dark matter, naturalness and a complete gauge unification

作者：Kainulainen Kimmo; Tuominen Kimmo; Virkajarvi Jussi

来源：Journal of Cosmology and Astroparticle Physics, 2015, 2015(7): 034.

DOI：10.1088/1475-7516/2015/07/034

• dark matter theory
• dark matter experiments
• particle physics - cosmology connection

We consider dark matter in a minimal extension of the Standard Model (SM) which breaks electroweak symmetry dynamically and leads to a complete unification of the SM and technicolor coupling constants. The unification scale is determined to be M-U approximate to 2.2 x 10(15) GeV and the unified coupling alpha(U) approximate to 0.0304. Moreover, unification strongly suggest that the technicolor sector of the model must become strong at the scale of O(TeV). The model also contains a tightly constrained sector of mixing neutral fields stabilized by a discrete symmetry. We find the lightest of these states can be DM with a mass in the range m(DM) approximate to 30-800 GeV. We find a large set of parameters that satisfy all available constraints from colliders and from dark matter search experiments. However, most of the available parameter space is within the reach of the next generation of DM search experiments. The model is also sensitive to a modest improvement in the measurement of the precision electroweak parameters.

• 出版日期2015-7