Supersymmetric twin Higgs models have a discrete symmetry for which each standard model particle and its supersymmetric partner have a corresponding state that transforms under a mirror standard model gauge group. This framework is able to accommodate the nondiscovery of new particles at the LHC with the naturalness of the electroweak scale. We point out that supersymmetric twin Higgs models also provide a natural dark matter candidate. We investigate the possibility that a twin binolike state is the lightest supersymmetric particle and find that its freeze-out abundance can explain the observed dark matter abundance without fine-tuning the mass spectrum of the theory. Most of the viable parameter space can be probed by future dark matter direct detection experiments, and the LHC searches for staus and Higgsinos which may involve displaced vertices.

中文翻译：

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自然双胞胎中性暗物质

超对称孪生希格斯模型具有离散对称性，为此，每个标准模型粒子及其超对称伙伴具有对应的状态，该状态在镜像标准模型规格组下转换。该框架能够以电弱规模的自然性适应LHC中未发现的新颗粒。我们指出，超对称孪生希格斯模型也提供了天然的暗物质候选物。我们研究了孪生双态类似物是最轻的超对称粒子的可能性，并发现其冻结丰度可以解释所观察到的暗物质丰度，而无需微调该理论的质谱。大多数可行的参数空间都可以通过未来的暗物质直接检测实验来探究，