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arXiv 1909.00738hep-ph
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人工色耦合方案中的费米子质量分裂

Fermion mass splitting in the technicolor coupled scenario

A. Doff, A. A. Natale

摘要:

我们讨论了统一模型中的费米子质量生成,其中QCD和Technicolor(或任何两个强相互作用理论)耦合了Schwinger-Dyson方程。在这种情况下,与孤立理论中观察到的行为相比,Technicolor(TC)和QCD自能被修改。在这些模型中的伪戈德斯通玻色子的质量是远远高于在不同的情况下获得的,和唯象信号,除了从轻标量复合玻色子,将是很难被观察到在目前的对撞机能量。这些模型中最值得注意的事实是不同的普通费米子之间的质量分裂是如何产生的。我们讨论了如何实现必要的水平(或家庭)对称性,以产生不同世代的费米子之间的质量分裂;如何费米子质谱可能会被修改,由于大统一体相互作用,以及如何在同一个费米子世代内产生的质量分裂,由于电弱和大统一体相互作用。

英文摘要:

We discuss fermion mass generation in unified models where QCD and technicolor (or any two strongly interacting theories) have their Schwinger-Dyson equations coupled. In this case the technicolor (TC) and QCD self-energies are modified in comparison with the behavior observed in the isolated theories. In these models the pseudo-Goldstone boson masses are much higher than the ones obtained in different contexts, and phenomenological signals, except from a light scalar composite boson, will be quite difficult to be observed at present collider energies. The most noticeable fact of these models is how the mass splitting between the different ordinary fermions is generated. We discuss how a necessary horizontal (or family) symmetry can be implemented in order to generate the mass splitting between fermions of different generations; how the fermionic mass spectrum may be modified due to GUT interactions, as well as how the mass splitting within the same fermionic generation are generated due to electroweak and GUT interactions.

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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