Song Ningqiang, Vincent Aaron C
Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada.
Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Kingston, Ontario K7L 3N6, Canada.
Phys Rev Lett. 2020 Feb 7;124(5):051801. doi: 10.1103/PhysRevLett.124.051801.
If the length scale of possible extra dimensions is large enough, the effective Planck scale is lowered such that microscopic black holes could be produced in collisions of high-energy particles at colliders. These black holes evaporate through Hawking radiation of a handful of energetic particles drawn from the set of all kinematically and thermally allowed degrees of freedom, including dark matter. Here, we perform the first numerical black hole spectroscopic study of the dark sector. We find that if the next generation of colliders can produce microscopic black holes, then missing momentum signatures can reveal the existence of any new light (≲10 TeV) particle, regardless of the strength of its coupling to the standard model, even if there exists no such nongravitational coupling at all.
如果可能的额外维度的长度尺度足够大，有效普朗克尺度就会降低，以至于在对撞机中高能粒子碰撞时可能产生微观黑洞。这些黑洞通过霍金辐射蒸发，霍金辐射会产生一些从所有运动学和热学允许的自由度集合中产生的高能粒子，包括暗物质。在此，我们对暗物质领域进行了首次数值黑洞光谱研究。我们发现，如果下一代对撞机能产生微观黑洞，那么缺失动量特征就能揭示任何新的轻粒子（≲10 TeV）的存在，无论其与标准模型的耦合强度如何，即使根本不存在这种非引力耦合。
