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arXiv 1001.0637hep-phhep-th
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从自然粒子层次结构反演Sparticle层次结构

Inverted Sparticle Hierarchies from Natural Particle Hierarchies

Ofer Aharony, Leon Berdichevsky, Micha Berkooz, Yonit Hochberg, Daniel Robles-Llana

摘要:

味之谜的一个可能的解决方案是,费米子质量层次可以动态地产生通过耦合的前两代领域的强耦合的部门,这是近似保形不变,并导致大的异常尺寸的前两代领域在很大的能量范围。我们研究了使用同一扇区也打破超对称性的可能性。我们发现,这自动给出了一个“倒置的层次结构”,其中前两代squarks和slepton比其他超伙伴重得多。实现这种构造一般需要一些微调,以便在解决层次问题的同时满足对改变味道的中性电流的约束。我们表明,这种微调可以减少到比百分比水平更温和,通过对强耦合部门的形式及其与标准模型的耦合进行一些技术上自然的假设。

英文摘要:

A possible resolution of the flavor puzzle is that the fermion mass hierarchy can be dynamically generated through the coupling of the first two generation fields to a strongly coupled sector, which is approximately conformally invariant and leads to large anomalous dimensions for the first two generation fields over a large range of energies. We investigate the possibility of using the same sector to also break supersymmetry. We show that this automatically gives an "inverted hierarchy" in which the first two generation squarks and sleptons are much heavier than the other superpartners. Implementing this construction generically requires some fine-tuning in order to satisfy the constraints on flavor-changing neutral currents at the same time as solving the hierarchy problem. We show that this fine-tuning can be reduced to be milder than the percent level by making some technically natural assumptions about the form of the strongly coupled sector and its couplings to the standard model.

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