Reconstructing the WIMP Velocity Distribution from Direct Dark Matter Detection Data with a Non-Negligible Threshold Energy

Reconstructing the WIMP Velocity Distribution from Direct Dark Matter Detection Data with a Non-Negligible Threshold Energy
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利用不可忽略的阈值能量从直接暗物质探测数据重建 WIMP 速度分布

DOI:
10.1142/s021827181550090x
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发表时间:
2015
期刊:
arXiv: High Energy Astrophysical Phenomena
影响因子:
--
通讯作者:
Chung
Chung
中科院分区:
--
文献类型:
--
作者:
Chung

文献摘要

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在本文中,我们研究了为与模型无关的数据分析程序开发的表达式的修改,该程序以不可忽略的实验阈值能量重建银河系弱相互作用质量粒子(WIMP)的(时间平均)一维速度分布。我们的数值模拟表明,对于高达 O(200) km/s 的最小可重构速度,我们对归一化常数估计器进行的独立于模型的修改可以提供精确的重构速度分布点,以与真实的 WIMP 速度分布相匹配,偏差小于 10%。
In this paper, we investigate the modification of our expressions developed for the model-independent data analysis procedure of the reconstruction of the (time-averaged) one-dimensional velocity distribution of Galactic Weakly Interacting Massive Particles (WIMPs) with a non-negligible experimental threshold energy. Our numerical simulations show that, for a minimal reconstructable velocity of as high as O(200) km/s, our model-independent modification of the estimator for the normalization constant could provide precise reconstructed velocity distribution points to match the true WIMP velocity distribution with a <~ 10% bias.