Signatures of primordial black hole dark matter at DUNE and THEIA
Signatures of primordial black hole dark matter at DUNE and THEIA
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DOI：
10.1088/1475-7516/2021/10/051
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发表时间：
2021-06
影响因子：
6.4
通讯作者：
V. De Romeri;P. Martínez-Miravé;M. T'ortola
中科院分区：
文献类型：
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作者：
V. De Romeri;P. Martínez-Miravé;M. T'ortola
原始黑洞（PBH）是潜在的暗物质候选者，其质量可以跨越多个数量级。如果它们的质量在1015-1017 g范围内，它们可以通过霍金辐射的蒸发释放出相当大的MeV中微子通量。我们探索的可能性，检测轻（非）旋转PBH与未来的中微子实验。我们专注于两个下一代设施：深地下中微子实验（DUNE）和THEIA。我们模拟了预期的事件谱在两个实验假设不同的PBH质量分布和自旋，我们提取预期的95%C. L。对这些场景的敏感性。我们的分析表明，未来的中微子实验，如DUNE和THEIA将能够对PBH暗物质设置竞争性约束，从而在目前主要受光子数据约束的PBH参数空间的一部分中提供互补探针。
Primordial black holes (PBHs) are a potential dark matter candidate whose masses can span over many orders of magnitude. If they have masses in the 1015–1017 g range, they can emit sizeable fluxes of MeV neutrinos through evaporation via Hawking radiation. We explore the possibility of detecting light (non-)rotating PBHs with future neutrino experiments. We focus on two next generation facilities: the Deep Underground Neutrino Experiment (DUNE) and THEIA. We simulate the expected event spectra at both experiments assuming different PBH mass distributions and spins, and we extract the expected 95% C.L. sensitivities to these scenarios. Our analysis shows that future neutrino experiments like DUNE and THEIA will be able to set competitive constraints on PBH dark matter, thus providing complementary probes in a part of the PBH parameter space currently constrained mainly by photon data.