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arXiv 0901.4354hep-phhep-th
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夸克质量等级背后的动力学

Dynamics behind the quark mass hierarchy

Michio Hashimoto, V. A. Miransky

摘要:

我们介绍了一类新的模型描述夸克质量等级。在这一类中,主要负责电弱对称性破缺(EWSB)的动力学导致没有(或弱)同位旋破坏的夸克的质量谱。此外,这些质量的值是下型夸克的观测质量的数量级。然后,$t$夸克的强(尽管是亚临界)水平对角相互作用加上不同族之间的水平变味中性相互作用(没有微调)导致了一个真实的夸克质量谱。在这种情况下,出现了许多复合的希格斯玻色子。详细描述了第四族动态EWSB的具体模型。

英文摘要:

We introduce a new class of models describing the quark mass hierarchy. In this class, the dynamics primarily responsible for electroweak symmetry breaking (EWSB) leads to the mass spectrum of quarks with no (or weak) isospin violation. Moreover, the values of these masses are of the order of the observed masses of the down-type quarks. Then, strong (although subcritical) horizontal diagonal interactions for the $t$ quark plus horizontal flavor-changing neutral interactions between different families lead (with no fine tuning) to a realistic quark mass spectrum. In this scenario, many composite Higgs bosons occur. A concrete model with the dynamical EWSB with the fourth family is described in detail.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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