Knowledge Management System of Institute of Theoretical Physics, CAS
Jin, HB; Wu, YL ; Zhou, YF; Jin, HB (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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| Upper limits on dark matter annihilation cross sections from the first AMS-02 antiproton data | |
| Source Publication | PHYSICAL REVIEW D
 |
| Language | 英语 |
| Abstract | The first measurement on the antiproton to proton ratio by the AMS-02 collaboration agrees with the expectation from conventional cosmic-ray secondaries in the kinetic energy range similar to 20-100 GeV, which can be turned into stringent upper limits on the annihilation cross sections of dark matter (DM) above similar to 300 GeV. Using the GALPROP code, we derive the upper limits in various propagation models and DM profiles. We show that in the "conventional" propagation model, for the q (q) over bar, b (b) over bar, and W+W- final states, the constraints could be more stringent than that derived from the recent Ferm-LAT gamma-ray data on the dwarf spheroidal satellite galaxies. Making use of the typical minimal, median, and maximal models obtained from a previous GALPROP-based global fit to the preliminary AMS-02 data, we show that the variation of the upper limits is about a factor of five. The possibility of DM contributions to the low and very high energy (p) over bar /p data is discussed. |
| 2015 | |
| Volume | 92Issue:5Pages:55027 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevD.92.055027 |
| Indexed By | SCI |
| Funding Organization | National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Nature Science Foundation of China (NSFC) [10905084, 11335012, 11475237] ; National Nature Science Foundation of China (NSFC) [10905084, 11335012, 11475237] ; National Nature Science Foundation of China (NSFC) [10905084, 11335012, 11475237] ; National Nature Science Foundation of China (NSFC) [10905084, 11335012, 11475237] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/20856 |
| Collection | SCI期刊论文 计算平台成果 |
| Corresponding Author | Jin, HB (reprint author), State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Jin, HB,Wu, YL,Zhou, YF,et al. Upper limits on dark matter annihilation cross sections from the first AMS-02 antiproton data[J]. PHYSICAL REVIEW D,2015,92(5):55027. |
| APA | Jin, HB,Wu, YL,Zhou, YF,&Jin, HB .(2015).Upper limits on dark matter annihilation cross sections from the first AMS-02 antiproton data.PHYSICAL REVIEW D,92(5),55027. |
| MLA | Jin, HB,et al."Upper limits on dark matter annihilation cross sections from the first AMS-02 antiproton data".PHYSICAL REVIEW D 92.5(2015):55027. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Upper limits on dark（389KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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