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arXiv 1201.0878hep-ph
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第四代凝聚RS1模型中的夸克质量和混合

Quark masses and mixings in the RS1 model with a condensing 4th generation

A. E. Carcamo Hernandez, Claudio O. Dib, Nicolás Neill H., Alfonso R. Zerwekh

摘要:

我们研究了夸克质量和混合的层次模型的基础上的5维时空的Randall-Sundrum型的常曲率的两个膜,其中的电弱对称性破缺是动态引起的第四代夸克的凝聚,由于潜在的物理从5D体和第一KK胶子。我们首先研究的层次结构的夸克质量和混合,可以从纯粹的调整配置文件本地化,发现现实的群众没有复制,除非非平凡的层次结构的基础4-费米子相互作用从散装包括在内。然后,我们研究了整体U(1)对称性,可以施加,以获得非对称的修改后的弗里茨像纹理的质量矩阵,再现相当不错的夸克质量和CKM混合。

英文摘要:

We study the hierarchy of quark masses and mixings in a model based on a 5-dimensional spacetime with constant curvature of Randall-Sundrum type with two branes, where the Electroweak Symmetry Breaking is caused dynamically by the condensation of a 4th generation of quarks, due to underlying physics from the 5D bulk and the first KK gluons. We first study the hierarchy of quark masses and mixings that can be obtained from purely adjusting the profile localizations, finding that realistic masses are not reproduced unless non trivial hierarchies of underlying 4-fermion interactions from the bulk are included. Then we study global U(1) symmetries that can be imposed in order to obtain non-symmetric modified Fritzsch-like textures in the mass matrices that reproduce reasonably well quark masses and CKM mixings.

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