从扭曲的味道到平凡的非凡现象学
Extraordinary Phenomenology from Warped Flavor Triviality
摘要：
无政府扭曲的额外维度模型提供了层次问题的解决方案。它们也可以解释观察到的味道层次，但代价是很少的层次和CP问题，这自然需要LHC无法达到的卡鲁扎-克莱因（KK）尺度。我们最近已经表明，当风味问题被解耦，并假设要解决的UV物理，框架的参数空间大大打开。考虑到更低的KK标度和复合轻夸克的可能性，这类味平凡模型享有相当特殊的现象学，这是这封信的重点。我们还重新审视了无政府RS EDM问题，这需要m_{KK} > 8 TeV，并表明它是解决内味平凡模型。有趣的是，我们的框架可以诱导一个相当大的差异t \bar{t}向前向后的不对称性，并导致大量的助推di-jet事件，这可能与CDF合作的最新发现。该特征可通过观察此处所示的相应平面流量分布来观察。最后，我们指出，著名的标准模型偏好轻希格斯粒子显着减少在我们的框架。
英文摘要：
Anarchic warped extra dimensional models provide a solution to the hierarchy problem. They can also account for the observed flavor hierarchies, but only at the expense of little hierarchy and CP problems, which naturally require a Kaluza-Klein (KK) scale beyond the LHC reach. We have recently shown that when flavor issues are decoupled, and assumed to be solved by UV physics, the framework's parameter space greatly opens. Given the possibility of a lower KK scale and composite light quarks, this class of flavor triviality models enjoys a rather exceptional phenomenology, which is the focus of this letter. We also revisit the anarchic RS EDM problem, which requires m_{KK} > 8 TeV, and show that it is solved within flavor triviality models. Interestingly, our framework can induce a sizable differential t \bar{t} forward-backward asymmetry, and leads to an excess of massive boosted di-jet events, which may be linked to the recent findings of the CDF collaboration. This feature may be observed by looking at the corresponding planar flow distribution, which is presented here. Finally we point out that the celebrated standard model preference towards a light Higgs is significantly reduced within our framework.
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