Scale genesis and gravitational wave in a classically scale invariant extension of the standard model
Scale genesis and gravitational wave in a classically scale invariant extension of the standard model
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DOI：
10.1088/1475-7516/2016/12/001
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发表时间：
2016-10
影响因子：
6.4
通讯作者：
J. Kubo;M. Yamada
中科院分区：
文献类型：
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作者：
J. Kubo;M. Yamada
我们假设，起源的电弱（EW）规模是一个规范不变的标量双线性凝聚在一个强相互作用的非阿贝尔规范部门，这是连接到标准模型通过希格斯门耦合。动力学尺度的形成表现为有限温度下的相变，在早期宇宙中可以产生引力波背景。我们发现尺度相变的临界温度高于EW相变的临界温度，低于几个O（100）GeV，并且是强一级相变。我们计算了GW背景的光谱，发现GW背景的尺度相变足够强，可以用DECIGO观测到。
We assume that the origin of the electroweak (EW) scale is a gauge-invariant scalar-bilinear condensation in a strongly interacting non-abelian gauge sector, which is connected to the standard model via a Higgs portal coupling. The dynamical scale genesis appears as a phase transition at finite temperature, and it can produce a gravitational wave (GW) background in the early Universe. We find that the critical temperature of the scale phase transition lies above that of the EW phase transition and below few O(100) GeV and it is strongly first-order. We calculate the spectrum of the GW background and find the scale phase transition is strong enough that the GW background can be observed by DECIGO.