Can WIMP Dark Matter overcome the Nightmare Scenario
Can WIMP Dark Matter overcome the Nightmare Scenario
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DOI：
10.1103/physrevd.82.055026
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发表时间：
2010-05
影响因子：
5
通讯作者：
S. Kanemura;S. Matsumoto;Takehiro Nabeshima;N. Okada
中科院分区：
文献类型：
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作者：
S. Kanemura;S. Matsumoto;Takehiro Nabeshima;N. Okada
即使超越标准模型（SM）的新物理确实存在，新物理的能量尺度可能也超出了大型强子对撞机（LHC）的范围，而且LHC只能找到希格斯玻色子，其他什么也找不到。这就是所谓的“噩梦场景”。另一方面，暗物质的存在已经从各种观测中得到了证实。热遗迹暗物质的一个有希望的候选者是一种稳定的、电荷中性的、质量低于TeV尺度的弱相互作用大质量粒子（WIMP）。在噩梦场景中，我们在SM规范群下引入一个WIMP暗物质单重态，该暗物质单重态只在最低阶与希格斯双重态偶联，并通过暗物质遗迹丰富度、暗物质粒子直接探测实验和大型强子对撞机产生暗物质粒子等各种现象学测试，探讨了这种WIMP暗物质作为克服噩梦场景的线索的可能性。
Even if new physics beyond the Standard Model (SM) indeed exists, the energy scale of new physics might be beyond the reach at the Large Hadron Collider (LHC) and the LHC could find only the Higgs boson but nothing else. This is the so-called “nightmare scenario”. On the other hand, the existence of the dark matter has been established from various observations. One of the promising candidates for thermal relic dark matter is a stable and electric charge-neutral Weakly Interacting Massive Particle (WIMP) with the mass below the TeV scale. In the nightmare scenario, we introduce a WIMP dark matter singlet under the SM gauge group, which only couples to the Higgs doublet at the lowest order, and investigate a possibility that such WIMP dark matter can be a clue to overcome the nightmare scenario via various phenomenological tests such as the dark matter relic abundance, the direct detection experiments for the dark matter particle, and the production of the dark matter particle at the LHC.