摘要
The PandaX-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Un- derground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1–10 keV electron equivalent energy, the total electron recoil background is found to be 4:9 × 10−5 kg−1d−1keV−1. The nuclear recoil background in the same region is 2:8 × 10−7 kg−1d−1keV−1. With an exposure of 5.6 ton-years, the sensitivity of PandaX-4T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10−48 cm2 at a dark matter mass of 40 GeV/c2.
| 源语言 | 英语 |
|---|---|
| 文章编号 | 31011 |
| 期刊 | Science China: Physics, Mechanics and Astronomy |
| 卷 | 62 |
| 期 | 3 |
| DOI | |
| 出版状态 | 已出版 - 1 3月 2019 |
| 已对外发布 | 是 |
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