论文标题
超对称双Higgs模型中充电的暗物质
Charged Dark Matter in Supersymmetric Twin Higgs models
论文作者
论文摘要
超对称双Higgs模型可以改善电子量表的微调，该量表来自大型强子对撞机的不发现所需的重型标量顶伴侣。如果最轻的超对称粒子位于双扇区中，那么即使在双层相互作用下充电，它也可能起着暗物质的作用。我们表明，即使双电磁量规对称性是不间断的，Twin Stau是带电暗物质的可行候选者，其热液体丰度自然与观察到的暗物质丰度相匹配。广泛的参数空间满足了所有实验约束，包括关于暗物质自我互动的限制。在将来的直接检测实验（例如lux-Zeplin）中可以观察到双Stau暗物质。 STAU的质量在300-500 GEV范围内，在最小情况下，衰减长度足够长，可以被观察到大型强子对撞机的消失轨道或长寿命的粒子。
Supersymmetric Twin Higgs models ameliorate the fine-tuning of the electroweak scale originating from the heavy scalar top partners required by the non-discovery of them at the Large Hadron Collider. If the Lightest Supersymmetric Particle resides in the twin sector, it may play the role of dark matter even if it is charged under twin gauge interactions. We show that the twin stau is a viable candidate for charged dark matter, even if the twin electromagnetic gauge symmetry is unbroken, with thermal relic abundance that naturally matches the observed dark matter abundance. A wide parameter space satisfies all the experimental constraints including those on dark matter self-interactions. Twin stau dark matter can be observed in future direct detection experiments such as LUX-ZEPLIN. The stau has a mass in the range of 300-500 GeV, and in the minimal scenario, has a decay length long enough to be observed as a disappearing track or a long-lived particle at the Large Hadron Collider.
