The nature of dark matter is still an open problem. The simplest assumption is that gravity is the only force coupled certainly to dark matter and thus the micro black holes could be a viable candidate. We investigated the possibility of direct detection of micro black holes with masses around and upward the Planck scale (10$^{-5}$ g), ensuring classical gravitational treatment of these objects in the next generation of huge LAr detectors. We show that the signals (ionization and scintillation) produced in LAr enable the discrimination between micro black holes or other particles. It is expected that the trajectories of these micro black holes will appear as crossing the whole active medium, in any direction, producing uniform ionization and scintillation on all the path.

中文翻译：

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关于在 LAr 探测器中探测质量非常低的黑洞

暗物质的性质仍然是一个悬而未决的问题。最简单的假设是引力是唯一肯定与暗物质耦合的力，因此微型黑洞可能是一个可行的候选者。我们研究了直接探测质量在普朗克尺度 (10$^{-5}$g) 附近的微型黑洞的可能性，确保在下一代大型 LAr 探测器中对这些物体进行经典的引力处理。我们展示了 LAr 中产生的信号（电离和闪烁）能够区分微黑洞或其他粒子。预计这些微型黑洞的轨迹将出现在穿过整个活性介质的任何方向，在所有路径上产生均匀的电离和闪烁。