Institute for Theoretical Physics, Kanazawa University, Kanazawa 920-1192, Japan.
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany.
Phys Rev Lett. 2014 Aug 29;113(9):091604. doi: 10.1103/PhysRevLett.113.091604.
We propose a new mechanism to generate the electroweak scale within the framework of QCD, which is extended to include conformally invariant scalar degrees of freedom belonging to a larger irreducible representation of SU(3)c. The electroweak symmetry breaking is triggered dynamically via the Higgs portal by the condensation of the colored scalar field around 1 TeV. The mass of the colored boson is restricted to be 350 GeV≲mS≲3 TeV, with the upper bound obtained from perturbative renormalization group evolution. This implies that the colored boson can be produced at the LHC. If the colored boson is electrically charged, the branching fraction of the Higgs boson decaying into two photons can slightly increase, and moreover, it can be produced at future linear colliders. Our idea of nonperturbative electroweak scale generation can serve as a new starting point for more realistic model building in solving the hierarchy problem.
我们提出了一种新的机制，在 QCD 的框架内产生电弱标度，该机制扩展到包括属于 SU(3)c 更大不可约表示的共形不变标量自由度。电弱对称性通过 Higgs 门户通过色标量场在 1 TeV 左右的凝聚而动态触发。色玻色子的质量被限制为 350 GeV≲mS≲3 TeV，上限是由微扰重整化群演化得到的。这意味着色玻色子可以在 LHC 中产生。如果色玻色子带电，那么 Higgs 玻色子衰变成两个光子的分支比可以略微增加，而且它可以在未来的线性对撞机中产生。我们的非微扰电弱标度产生的想法可以作为更现实的模型构建的新起点，以解决层次问题。
