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Results of Search for Magnetized Quark-Nugget Dark Matter from Radial Impacts on Earth
Universe ( IF 2.5 ) Pub Date : 2021-04-21 , DOI: 10.3390/universe7050116
J. Pace VanDevender , Robert G. Schmitt , Niall McGinley , David G. Duggan , Seamus McGinty , Aaron P. VanDevender , Peter Wilson , Deborah Dixon , Helen Girard , Jacquelyn McRae

Magnetized quark nuggets (MQNs) are a recently proposed dark-matter candidate consistent with the Standard Model and with Tatsumi’s theory of quark-nugget cores in magnetars. Previous publications have covered their formation in the early universe, aggregation into a broad mass distribution before they can decay by the weak force, interaction with normal matter through their magnetopause, and a first observation consistent MQNs: a nearly tangential impact limiting their surface-magnetic-field parameter Bo from Tatsumi’s ~1012+/−1 T to 1.65 × 1012 T +/− 21%. The MQN mass distribution and interaction cross section strongly depend on Bo. Their magnetopause is much larger than their geometric dimensions and can cause sufficient energy deposition to form non-meteorite craters, which are reported approximately annually. We report computer simulations of the MQN energy deposition in water-saturated peat, soft sediments, and granite, and report the results from excavating such a crater. Five points of agreement between observations and hydrodynamic simulations of an MQN impact support this second observation being consistent with MQN dark matter and suggest a method for qualifying additional MQN events. The results also redundantly constrain Bo to ≥ 4 × 1011 T.

中文翻译:

通过径向撞击地球搜索磁化的夸克-金块暗物质的结果

磁化夸克块(MQN)是最近提出的暗物质候选对象,与标准模型以及Tatsumi的磁星中的夸克块核理论相一致。先前的出版物涵盖了它们在早期宇宙中的形成,在它们可以被弱力衰减之前聚集成广泛的质量分布,通过其磁更年期与正常物质相互作用以及首次观察到一致的MQN:几乎切线的影响限制了它们的表面磁性场参数B o从Tatsumi的〜10 12 +/- 1 T到1.65×10 12 T +/- 21%。MQN的质量分布和相互作用截面在很大程度上取决于B o。它们的绝磁远大于其几何尺寸,并且可以引起足够的能量沉积以形成非陨石陨石坑,这种陨石坑大约每年都有报道。我们报告了在含水饱和泥炭,软质沉积物和花岗岩中MQN能量沉积的计算机模拟,并报告了开挖此类火山口的结果。观测与MQN冲击的流体动力学模拟之间的五个共识点支持第二次观测与MQN暗物质相一致,并提出了限定其他MQN事件的方法。结果还多余地将B o约束为≥4×10 11T
更新日期:2021-04-21
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