Constraints on the interactions between dark matter and baryons from the x-ray quantum calorimetry
Constraints on the interactions between dark matter and baryons from the x-ray quantum calorimetry
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X射线量子量热法对暗物质与重子相互作用的约束
DOI：
10.1103/physrevd.76.042007
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发表时间：
2007
影响因子：
5
通讯作者：
W. University
中科院分区：
文献类型：
--
作者：
A. Erickcek;P. Steinhardt;D. McCammon;Patrick C. McGuire Caltech;P. University;U. Wisconsin;W. University
虽然基于火箭的X射线量子量热（XQC）实验是为X射线光谱学设计的，但其量热计的最小屏蔽，低大气过载和低阈值探测器使其成为检测或限制暗物质粒子和重子之间强相互作用的最灵敏仪器之一。我们使用Monte Carlo模拟来获得XQC实验对暗物质和重子之间的自旋独立相互作用的精确限制，改进了早期的分析估计。我们发现，XQC实验排除了质量在0.01到10^5 GeV之间的暗物质粒子以1 B为中心的大范围核子散射截面。我们的分析还提供了新的限制的情况下，只有一小部分的暗物质强烈与重子相互作用。
Although the rocket-based x-ray quantum calorimetry (XQC) experiment was designed for x-ray spectroscopy, the minimal shielding of its calorimeters, its low atmospheric overburden, and its low-threshold detectors make it among the most sensitive instruments for detecting or constraining strong interactions between dark matter particles and baryons. We use Monte Carlo simulations to obtain the precise limits the XQC experiment places on spin-independent interactions between dark matter and baryons, improving upon earlier analytical estimates. We find that the XQC experiment rules out a wide range of nucleon-scattering cross sections centered around 1 b for dark matter particles with masses between 0.01 and 10^5 GeV. Our analysis also provides new constraints on cases where only a fraction of the dark matter strongly interacts with baryons.