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arXiv 1508.03050hep-phastro-ph.COhep-ex
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在对撞机上发现非弹性热遗迹暗物质

Discovering Inelastic Thermal-Relic Dark Matter at Colliders

Eder Izaguirre, Gordan Krnjaic, Brian Shuve

摘要:

具有非弹性相互作用的暗物质粒子在标准模型的扩展中无处不在,但仍然具有挑战性,以现有的策略进行全面探测。我们提出了一系列强有力的搜索在强子和轻子对撞机是敏感的非弹性暗物质动力学。在具有代表性的模型中,无论是大质量暗光子还是磁偶极相互作用,我们发现LHC和BaBar都能对热遗迹暗物质参数空间提供很强的灵敏度,适用于质量在~100 MeV-100 GeV之间的暗物质,以及质量分裂在百分水平以上的情况;未来在Belle II上使用专用的超光子触发器的搜索也可以提供对质量低于几个GeV的热遗迹场景的灵敏度。具有较大质量或分裂的热场景在很大程度上被排除;较低质量仍然可行,但可以使用其他搜索策略。

英文摘要:

Dark Matter particles with inelastic interactions are ubiquitous in extensions of the Standard Model, yet remain challenging to fully probe with existing strategies. We propose a series of powerful searches at hadron and lepton colliders that are sensitive to inelastic dark matter dynamics. In representative models featuring either a massive dark photon or a magnetic dipole interaction, we find that the LHC and BaBar could offer strong sensitivity to the thermal-relic dark matter parameter space for dark matter masses between ~100 MeV-100 GeV and fractional mass-splittings above the percent level; future searches at Belle II with a dedicated monophoton trigger could also offer sensitivity to thermal-relic scenarios with masses below a few GeV. Thermal scenarios with either larger masses or splittings are largely ruled out; lower masses remain viable yet may be accessible with other search strategies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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