Measuring Dark Matter Distribution in Directional Direct Detection

4th Workshop on Directional Detection of Dark Matter

Nagao, Keiko I.^1

Niihama National College of Technology, Department of Engineering Science, 7-1 Yagumo, Niihama, Ehime 792-8580, Japan^1

关键词: Dark matter;    Direct detection;    Directional sensitivity;    Maxwell distributions;    N-body simulation;    Nuclear emulsions;    Recoil energies;    Tidal streams;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/469/1/012009/pdf
DOI  :  10.1088/1742-6596/469/1/012009

来源: IOP

【 摘 要 】

Direct detection of dark matter with directional sensitivity offers not only measurement of both recoil energy and direction of dark matter, but also a way to understand dark matter distribution in the Galaxy. Maxwell distribution is usually supposed as the distribution near the Earth, however, result of N-body simulations suggest deviation from that due to tidal stream in the Galaxy. We explore the possibility of distinguishing the distribution by direct detection using nuclear emulsions.