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

Title: 具有色媒介子的宇称破坏暗物质

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，我们研究了假设暗物质相互作用由带色粒子介导的宇称破坏暗物质情景。 我们研究了该模型的现象学，包括对撞机搜索、味和CP现象学。 一个可能的最小情景包括标量暗物质和新的矢量样带色费米子作为媒介子，其质量为O(1) TeV。 这样的情景可能在14 TeV的LHC上被探测到，而味和CP约束是严格且严重的，耦合常数不可避免地需要精细调节。 我们还发现，作为解释CDMS-II Si信号的一种解释，具有带色标量媒介子的宇称破坏费米子暗物质模型受到LHC约束的不利影响。