标题： 顶夸克的复合性和精确统一性 显示英文标题

标题： Top Compositeness and Precision Unification

摘要： 在一种非超对称的情景下研究了标准模型规范耦合的演化，其中等级问题通过弱标度以上的希格斯组分来解决。 有人认为顶夸克的质量加上底夸克的精确测量结果表明右手上侧顶夸克也必须是组分的。 如果进一步将标准模型的规范对称性嵌入到未破裂复合材料部门味对称性的简单子群中，则精确耦合统一发生在~10^{15} GeV，其程度与超对称统一相当。 显示英文摘要

摘要： The evolution of Standard Model gauge couplings is studied in a non-supersymmetric 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~10^{15} GeV, to a degree comparable to supersymmetric unification.