在LHC早期判别最小SUGRA和最小规范中介模型
Discriminating Minimal SUGRA and Minimal Gauge Mediation Models at the Early LHC
摘要：
在各种超对称（SUSY）标准模型中，从宇宙学的观点来看，中性伴子的引力中介模型和极轻引力伴子的规范中介模型是最有吸引力的两个模型。这些模型具有不同的超对称性破缺尺度，其高能物理基础也有很大的不同。然而，如果超粒子在后一种情况下迅速衰变为引力子，它们的对撞机特征可能是相似的：多个喷流和缺少横向动量。在本文中，我们研究了这些模型之间的歧视，在最小的情况下，在大型强子对撞机的基础上的方法，使用的显着性变量在几个不同的模式，并显示歧视是可能的，在发现后的早期阶段。
英文摘要：
Among various supersymmetric (SUSY) standard models, the gravity mediation model with a neutralino LSP and the gauge mediation model with a very light gravitino are attractive from the cosmological view point. These models have different scales of SUSY breaking and their underlying physics in high energy is quite different. However, if the sparticles' decay into the gravitino is prompt in the latter case, their collider signatures can be similar: multiple jets and missing transverse momentum. In this paper, we study the discrimination between these models in minimal cases at the LHC based on the method using the significance variables in several different modes and show the discrimination is possible at a very early stage after the discovery.
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