NEUTRINO EMISSION FROM DARK MATTER ANNIHILATION/DECAY IN LIGHT OF COSMIC e(+/-) AND (p)over-bar DATA
文献类型：期刊论文
| 作者 | 刘杰(理); Yuan Q(袁强) ; Bi XJ(毕效军); Li H(李虹); Zhang XM(张新民); Liu, J; Yuan, Q; Bi, XJ; Li, H; Zhang, XM
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| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
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| 出版日期 | 2012 |
| 卷号 | 27期号:6页码:1250024 |
| 关键词 | Neutrino dark matter indirect search MCMC |
| 英文摘要 | A self-consistent global fitting method based on the Markov Chain Monte Carlo technique to study the dark matter (DM) property associated with the cosmic ray electron/positron excesses was developed in our previous work. In this work we further improve the previous study to include the hadronic branching ratio of DM annihilation/decay. The PAMELA (p) over bar /p data are employed to constrain the hadronic branching ratio. We find that the 95% (2 sigma) upper limits of the quark branching ratio allowed by the PAMELA (p) over bar /p data is similar to 0.032 for DM annihilation and similar to 0.044 for DM decay, respectively. This result shows that the DM coupling to pure leptons is indeed favored by the current data. Based on the global fitting results, we further study the neutrino emission from DM in the galactic center. Our predicted neutrino flux is some smaller than previous works since the constraint from gamma-rays is involved. However, it is still capable to be detected by the forthcoming neutrino detector such as IceCube. The improved points of the present study compared with previous works include: (1) the DM parameters, both the particle physical ones and astrophysical ones, are derived in a global fitting way, (2) constraints from various species of data sets, including gamma-rays and antiprotons are included, and (3) the expectation of neutrino emission is fully self-consistent. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000301500700003 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224696]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_粒子天体物理中心 |
| 推荐引用方式 GB/T 7714 | Liu J,Yuan Q,Bi XJ,et al. NEUTRINO EMISSION FROM DARK MATTER ANNIHILATION/DECAY IN LIGHT OF COSMIC e(+/-) AND (p)over-bar DATA[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2012,27(6):1250024. |
| APA | 刘杰.,袁强.,毕效军.,李虹.,张新民.,...&Zhang, XM.(2012).NEUTRINO EMISSION FROM DARK MATTER ANNIHILATION/DECAY IN LIGHT OF COSMIC e(+/-) AND (p)over-bar DATA.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,27(6),1250024. |
| MLA | 刘杰,et al."NEUTRINO EMISSION FROM DARK MATTER ANNIHILATION/DECAY IN LIGHT OF COSMIC e(+/-) AND (p)over-bar DATA".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 27.6(2012):1250024. |
入库方式： OAI收割
来源：高能物理研究所
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