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arXiv 2008.03295hep-phhep-exhep-th
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XENON1T异常的隐藏光子暗物质解释的低尺度弦论基准

Low Scale String Theory Benchmarks for Hidden Photon Dark Matter Interpretations of the XENON1T Anomaly

Athanasios Karozas, Stephen F. King, George K. Leontaris, Dimitrios K. Papoulias

摘要:

最近在XENON 1 T探测器中观察到超过已知背景的过量低能电子反冲事件,其中观察到$285$事件,与仅背景拟合能量范围1-7 keV的数据的预期$232 \pm 15$事件相比。这可能是由于一个意想不到的氚成分的β衰变,或者可能是新的物理。一个新的物理学解释是,隐藏的光子暗物质遗迹的吸收,其质量约为$2.8$ keV,动力学混合约为$10^{-15}$,这也可以解释水平分支(HB)恒星的冷却过度。这种小规范玻色子质量和耦合可以自然地从IIB型低尺度弦论中产生。我们提供了一个适合的XENON 1 T过剩的最小的低尺度IIB型弦论参数空间,并提出了一些基准点,提供了一个很好的拟合数据。它还演示了如何获得所需的转换特性的无质量频谱相交D膜模型。

英文摘要:

An excess of low-energy electronic recoil events over known backgrounds was recently observed in the XENON1T detector, where $285$ events are observed compared to an expected $232 \pm 15$ events from the background-only fit to the data in the energy range 1-7 keV. This could be due to the beta decay of an unexpected tritium component, or possibly to new physics. One plausible new physics explanation for the excess is absorption of hidden photon dark matter relics with mass around $2.8$ keV and kinetic mixing of about $10^{-15}$, which can also explain cooling excesses in horizontal-branch (HB) stars. Such small gauge boson masses and couplings can naturally arise from type-IIB low scale string theory. We provide a fit of the XENON1T excess in terms of a minimal low scale type-IIB string theory parameter space and present some benchmark points which provide a good fit to the data. It is also demonstrated how the required transformation properties of the massless spectrum are obtained in intersecting D-brane models.

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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