Title: Isospin-Violating Dark Matter with Colored Mediators Show Chinese title

Title: 带色媒介的同位旋破缺暗物质

Abstract: In light of positive signals reported by the CDMS-II Si experiment and the recent results of the LUX and SuperCDMS experiments, we study isospin-violating dark matter scenarios assuming that the interaction of the dark matter is mediated by colored particles. We investigate the phenomenology of the model, including collider searches, flavor and CP phenomenology. A minimal possible scenario includes scalar dark matter and new vector-like colored fermions with masses of O(1) TeV as mediators. Such a scenario may be probed at the 14 TeV LHC, while flavor and CP constraints are stringent and severe tuning in the couplings is unavoidable. We also found that, as an explanation of the CDMS-II Si signal, isospin-violating fermionic dark matter models with colored scalar mediators are disfavored by the LHC constraints. Show Chinese abstract

Abstract: 鉴于CDMS-II Si实验报告的积极信号以及LUX和SuperCDMS实验的最新结果，我们研究了同位旋破缺暗物质情景，假设暗物质的相互作用由带颜色的粒子介导。 我们探讨了该模型的物理现象，包括对撞机搜索、味物理和CP物理。 一个可能的最小情景包括标量暗物质和新矢量型带颜色的费米子作为媒介，其质量约为O(1) TeV。 这样的情景可以在14 TeV的LHC上被探测到，但味物理和CP物理约束严格且不可避免地需要在耦合中进行严重的调整。 我们还发现，作为一种解释CDMS-II Si信号的方式，带颜色标量媒介的同位旋破缺费米子暗物质模型因LHC约束而不被青睐。