A similar phenomenon, called symmetrybreaking, is thought to have occurred shortly after the Big Bang and upset the balance between matter and antimatter, leaving the universe with more matter.
In the framework of the standard model of symmetrybreaking explained, but the need to be extended to three quark model family.
他们在标准模型的框架下对对称破缺进行了解释，但是需要将模型扩展至三个夸克家族。
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But by far, there is no experimental phenomenon representing the mass generation mechanism of symmetrybreaking mechanism, and the Higgs boson is not found in experiment till now.