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arXiv 1111.3951hep-phhep-th
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5D游乐场上的顶级跷跷板

A Top Seesaw on a 5D Playground

Don Bunk, Jay Hubisz, Jing Shao, Philip Tanedo

摘要:

我们研究了一个额外的维汤川理论的量子修正,其中一个单一的平面额外的空间维是紧化的间隔。在UV尺度下,通过选择适当的边界条件,该理论可以等价于具有体四费米子算子的5D理论。利用费米子泡近似,我们发现真空解决方案,打破了紧化所产生的手征对称性。特别令人感兴趣的是从费米子环中产生的膜定域项的形式。例如,由于5D洛伦兹不变性的残余,在引入费米子体质量后才丢失,因此在一个环中不存在对标量质量的二次发散贡献。该模型被解释为在额外的维度与自动跷跷板机制的顶部凝聚的实施。

英文摘要:

We study quantum corrections to an extra dimensional Yukawa theory where a single flat extra spatial dimension is compactified on an interval. At a UV scale this theory can be made equivalent to a 5D theory with a bulk four-fermion operator by choosing appropriate boundary conditions for the running of the low-energy theory. Using the fermion bubble approximation we find vacuum solutions which break the chiral symmetries that arise from compactification. Of particular interest are the form of brane localized terms which arise from fermion loops. For example, quadratically divergent contributions to the scalar mass are absent at one loop due to a remnant of 5D Lorentz invariance that is only lost after introducing fermion bulk masses. The model is interpreted as an implementation of top condensation in extra dimensions with an automatic seesaw mechanism.

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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