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arXiv 1005.0752astro-ph.COhep-ph
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快电弱对称性破缺与冷电弱重子生成

Fast Electroweak Symmetry Breaking and Cold Electroweak Baryogenesis

Kari Enqvist, Philip Stephens, Olli Taanila, Anders Tranberg

摘要:

我们构建了一个延迟电弱对称性破缺模型,该模型发生在T<<100 GeV的冷宇宙中,并且通过快速猝灭而不是通过传统的缓慢相变进行。这是通过将标准模型希格斯粒子耦合到一个额外的标量场来实现的。我们表明,淬火过渡可以足够快,成功的冷电弱重子,而留下已知的电弱物理不变。

英文摘要:

We construct a model for delayed electroweak symmetry breaking that takes place in a cold Universe with T<<100 GeV and which proceeds by a fast quench rather than by a conventional, slow, phase transition. This is achieved by coupling the Standard Model Higgs to an additional scalar field. We show that the quench transition can be made fast enough for successful Cold Electroweak Baryogenesis, while leaving known electroweak physics unchanged.

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