Natural supersymmetry in warped space
Natural supersymmetry in warped space
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DOI：
10.1007/jhep10(2014)182
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发表时间：
2014-07
影响因子：
5.4
通讯作者：
B. Heidenreich;Y. Nakai
中科院分区：
文献类型：
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作者：
B. Heidenreich;Y. Nakai
我们探讨了结合超对称性和复合性范式解决层次问题的可能性。这两种范式都受到大型强子对撞机（LHC）结果的压力，并且将它们结合起来允许更高的限制尺度-由于低能理论中的有效超对称性-以及更重的超伙伴-由于希格斯玻色子的复合性质-而不会牺牲自然性。超对称的Randall-Sundrum模型提供了一个计算是可能的具体例子，我们追求一个现实的模型在这种情况下。通过一些假设，我们得到了一个具有体费米子、体中的左右规范对称性和UV膜上的超对称破缺的模型。前两代方波是解耦的，减少了LHC的签名，但也导致了两个循环的二次发散。该模型预测了轻的W′和Z′规范玻色子，并且目前LHC对奇异规范玻色子的约束意味着高的约束尺度和对二次发散的温和调谐，但该模型在其他方面是可行的。我们还指出，R-宇称破坏可以自然地出现在这种情况下。
We explore the possibility of solving the hierarchy problem by combining the paradigms of supersymmetry and compositeness. Both paradigms are under pressure from the results of the Large Hadron Collider (LHC), and combining them allows both a higher confinement scale—due to effective supersymmetry in the low energy theory—and heavier superpartners—due to the composite nature of the Higgs boson—without sacrificing naturalness. The supersymmetric Randall-Sundrum model provides a concrete example where calculations are possible, and we pursue a realistic model in this context. With a few assumptions, we are led to a model with bulk fermions, a left-right gauge symmetry in the bulk, and supersymmetry breaking on the UV brane. The first two generations of squarks are decoupled, reducing LHC signatures but also leading to quadratic divergences at two loops. The model predicts light W′ and Z′ gauge bosons, and present LHC constraints on exotic gauge bosons imply a high confinement scale and mild tuning from the quadratic divergences, but the model is otherwise viable. We also point out that R-parity violation can arise naturally in this context.