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arXiv 1409.0750hep-ph
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经济3-3-1模型中的电弱相变

Electroweak phase transition in the economical 3-3-1 model

Vo Quoc Phong, Hoang Ngoc Long, Vo Thanh Van, Le Hoang Minh

摘要:

我们在经济的3-3-1(E331)模型中考虑EWPT。我们的分析表明,EWPT模型是一个序列的两个一级相变,$SU(3) \rightarrow SU(2)$在TeV尺度和$SU(2) \rightarrow U(1)$在$100$ GeV尺度。EWPT $SU(3) \rightarrow SU(2)$是由新玻色子和奇异夸克触发的;如果这些新粒子的质量范围是$10^2 \,\mathrm{GeV} - 10^3 \,\mathrm{GeV}$,它的强度约为$1 - 13$。EWPT $SU(2) \rightarrow U(1)$只被新玻色子强化;如果$H^0_1$、$H^\pm_2$和$Y^\pm$的质量部分在$10 \,\mathrm{GeV} - 10^2 \,\mathrm{GeV}$范围内,则其强度约为$1 - 1.15$。$H^0_1$和$H^{\pm}_2$对两种EWPT强度的贡献可能使它们足够强,以提供重子生成所需的热平衡和B破坏的大偏差。

英文摘要:

We consider the EWPT in the economical 3-3-1 (E331) model. Our analysis shows that the EWPT in the model is a sequence of two first-order phase transitions, $SU(3) \rightarrow SU(2)$ at the TeV scale and $SU(2) \rightarrow U(1)$ at the $100$ GeV scale. The EWPT $SU(3) \rightarrow SU(2)$ is triggered by the new bosons and the exotic quarks; its strength is about $1 - 13$ if the mass ranges of these new particles are $10^2 \,\mathrm{GeV} - 10^3 \,\mathrm{GeV}$. The EWPT $SU(2) \rightarrow U(1)$ is strengthened by only the new bosons; its strength is about $1 - 1.15$ if the mass parts of $H^0_1$, $H^\pm_2$ and $Y^\pm$ are in the ranges $10 \,\mathrm{GeV} - 10^2 \,\mathrm{GeV}$. The contributions of $H^0_1$ and $H^{\pm}_2$ to the strengths of both EWPTs may make them sufficiently strong to provide large deviations from thermal equilibrium and B violation necessary for baryogenesis.

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