论文标题
在Little Randall Sundrum模型中驯服$ε_k$
Taming the $ε_K$ in Little Randall Sundrum Models
论文作者
论文摘要
Randall Sundrum（RS）模型从中性KAON系统获得了重大限制。在Randall Sundrum方案中，违反可观察的$ε_k$的CP要求最轻的Kk Gluon比$ \ sim $ 24 TEV重。在Little Randall Sundrum型号（LRS），$ \ gtrsim $ 32 TEV中，约束更加强大。 LRS模型是因为它们在大型锻造对撞机（LHC）中可能的可见性而激发了动力。我们表明，在Brane局部动力学术语（BLKT）的情况下，在LRS模型中可以放宽K形物理学的严格约束。特别是，对于一系列值，UV BLKT可以显着修改最轻的KK Gluon波函数，从而使极限可以减少到5 TEV。我们还表明，这种放松的约束也可以通过施加风味对称性{àla}最小的风味保护来实现。
The Randall Sundrum (RS) models receive significant constraints from the neutral Kaon system. The CP violating observable $ε_K$, in Randall Sundrum scenario, requires the lightest KK gluon to be heavier than $\sim$ 24 TeV. The constraint is even stronger in the Little Randall Sundrum models (LRS), $\gtrsim$ 32 TeV. The LRS models are motivated for their possible visibility at the Large Hardon Collider (LHC). We show that the stringent constraints from K-physics can be relaxed in the LRS models, in the presence of the Brane Localised Kinetic Terms (BLKT). In particular, for a range of values, a UV BLKT could significantly modify the lightest KK gluon wave function such that the limit can reduces to 5 TeV. We also show that such a relaxation of the constraints can also be achieved by imposing flavour symmetries {à la } Minimal Flavour Protection.
