Top compositeness and precision unification.
Top compositeness and precision unification.
复制标题
顶级的复合性和精度统一。
DOI：
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发表时间：
2005
影响因子：
8.6
通讯作者：
R. Sundrum
中科院分区：
文献类型：
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作者：
K. Agashe;R. Contino;R. Sundrum
在非超对称场景中研究了标准模型规范耦合的演化，其中层次问题通过弱尺度以上的希格斯复合性来解决。有人认为，顶夸克的质量与底夸克的精确测试相结合意味着右手顶夸克也必须是复合的。此外，如果将标准模型规范对称性嵌入到未破缺的复合扇形风味对称性的简单子群中，则精确耦合统一显示出发生在大约 10(15) GeV 处，达到与超对称统一相当的程度。
The evolution of standard model gauge couplings is studied in a nonsupersymmetric scenario in which the hierarchy problem is resolved by Higgs compositeness above the weak scale. It is argued that massiveness of the top quark combined with precision tests of the bottom quark imply that the right-handed top must also be composite. If, further, the standard model gauge symmetry is embedded into a simple subgroup of the unbroken composite-sector flavor symmetry, then precision coupling unification is shown to occur at approximately 10(15) GeV, to a degree comparable to supersymmetric unification.