Low-Mass Dark Matter Search with the DarkSide-50 Experiment
文献类型：期刊论文
| 作者 | DarkSide Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 121期号:8页码:81307 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.121.081307 |
| 文献子类 | Article |
| 英文摘要 | We present the results of a search for dark matter weakly interacting massive particles (WIMPs) in the mass range below 20 GeV/c(2) using a target of low-radioactivity argon with a 6786.0 kg d exposure. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso. The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1 keVee. The observed rate in the detector at 0.5 keVee is about 1.5 event/keVee/kg/d and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8 GeV/c(2) for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6 GeV/c(2). |
| 电子版国际标准刊号 | 1079-7114 |
| WOS关键词 | ARGON ; CAPTURE ; SIMULATIONS ; CONSTRAINTS ; IONIZATION ; GALAXIES ; AR-39 |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000442548300001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286242]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | DarkSide Collaboration. Low-Mass Dark Matter Search with the DarkSide-50 Experiment[J]. PHYSICAL REVIEW LETTERS,2018,121(8):81307. |
| APA | DarkSide Collaboration.(2018).Low-Mass Dark Matter Search with the DarkSide-50 Experiment.PHYSICAL REVIEW LETTERS,121(8),81307. |
| MLA | DarkSide Collaboration."Low-Mass Dark Matter Search with the DarkSide-50 Experiment".PHYSICAL REVIEW LETTERS 121.8(2018):81307. |
入库方式： OAI收割
来源：高能物理研究所
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